Open Relationships Rules: Insights from Real Couples

As the dating landscape evolves and people move away from traditional relationship structures, many of us are asking: could an open relationship be for me?

An open relationship is a romantic partnership where both partners agree that either may pursue sexual or romantic connections with other people outside the relationship.

Honesty is non-negotiable. Everyone involved knows about it and agrees to it.

It is one form of ethical non-monogamy, relationships built on explicit agreement rather than secrecy. Cheating is different. It relies on one partner not knowing.

To explore what it takes to have a healthy open relationship, I spoke to a few people about their experiences.

It became apparent pretty quickly that certain rules are necessary to make an open relationship last – just like in any other type of relationship.

The difference is that in an open relationship, the players make their own set of rules!

It doesn’t matter whether you’re already in an open relationship or thinking about it – this advice is for anyone interested in open relationships.

Who Did I Speak To?

James and Nicole are each other’s “primary partners” but they both have dates, sex, and relationships with other people.

Sophia has two main relationships (a so-called “hinge relationship”) with Nick and Damien who don’t date each other but have other relationships of their own.

Chris and Dave are a couple and have sex with other people but don’t date outside of their relationship.

(Please note: All the names I’ve used are aliases.)

Rule #1: Consider What Your Intention and Motivation Is

“Before you open up a relationship, ask yourself: what’s your motivation? Like, why do you want to do it?” said James.

This isn’t only relevant to first-timers. Even if you’re already in an open relationship, it’s worth asking yourself the same question: am I doing this for my ego, or because it’s my genuine preference?

James and Nicole have kept their relationship open from the start. His early interest, James admits, was ego-driven.

He would spend a lot of time on dating apps, chatting to as many women as possible to see how many were interested – he was seeking validation, he says.

He wasn’t comfortable discussing his sexual encounters with Nicole so he would keep his online and in-person activities private.

In essence, he was walking the open relationship path alone, rather than sharing the journey with his partner. Eventually, he realized “If I’m not sharing with Nicole, why are we even together? I might as well be single and have lots of non-committed relationships. We started sharing everything and it’s brought us much closer together.”

Chris thinks it’s important to vividly imagine what it’s going to be like before you go ahead with it, “Really picture your partner having sex with someone else. Imagine them flirting and messaging with others. Think about how that’ll make you feel.”

Nicole added, “When I first got into it, I was mostly thinking about all the fun I was going to be having. I didn’t really consider how it would be to hear about his meetups and interactions.

She continued.

It was a bit weird hearing about it at first, like when he would be upset because someone else rejected him.

I was like “Why are you telling ME this?” but it’s normal now and we share our ups and downs with each other.”

Dave puts it more bluntly.

“Never end up in a situation where one partner has all the fun and the other cries themselves to sleep at night,” he said.

Andrew G Marshall, a marital therapist with 35 years of experience, suggests avoiding two mistakes when opening up a relationship:

1. Don’t initiate the conversation about opening up the relationship if you already have someone specific in mind. The conversation should have happened at least two years prior.
2. Avoid shocking your partner with a unilateral decision about non-monogamy. The partner considering the open relationship should not spend too long debating it alone and then present it as a conclusion without giving their partner time to process and discuss.

Marshall suggests setting aside a significant amount of time, ranging from six months to 18 months, to thoroughly discuss the idea of an open relationship. This allows both partners to:

• Wrap their heads around the concept
• Ask questions
• Talk to and hear each other out
• Deal with each other’s distress without shutting down the topic

Opening up a relationship is a huge, life-changing decision that requires ample time, open communication, and the ability to handle complex emotions together.

Rule #2: Open and Honest Communication

Introspection matters, but it has to happen between partners too. Open and honest communication topped everyone’s list, even though many found it uncomfortable at first.

Why It’s Different From Monogamous Communication

Every relationship, whether monogamous, platonic, or open, relies on good communication. But communication in a monogamous relationship doesn’t usually involve talking about dating or sleeping with other people, unless you’re opening things up.

That’s not a flaw in either kind of relationship. It’s simply a different set of conversations couples need to have, on top of everything else.

On top of the usual conversations about feelings, fears, and dreams, open relationships add a whole new layer. There’s simply more to talk about.

Both partners need to feel safe expressing their thoughts, desires, and concerns, including discussing boundaries, expectations, and potential scenarios.

Every emotion that comes up – eagerness, excitement, fear, anxiety, or uncertainty – is valid and deserves to be acknowledged rather than dismissed.

Practicing Active Listening

Each partner should practice active listening: giving full attention, asking clarifying questions, and reflecting back what they’ve heard, rather than arguing a partner out of how they feel.

Nicole put the underlying principle simply, “It’s so important to talk about what makes you happy, what you need – but also what you find uncomfortable and unacceptable.”

“Don’t just go along with whatever your partner wants – you’re in this together and everyone should be comfortable and having a good time.”

“Keep sharing and be open about where you’re at with your emotions and thoughts. Polyrelationships go against what many people have been taught and socialized to believe. You go on a journey with your partner and explore whether you like it and how it makes you feel.” Sophia added.

Some people in open relationships pursue their extra-relational connections individually, but even then, a level of openness is needed if the primary relationship is to last.

Consent Is the Definition

Clinical social worker Kathy Slaughter frames consent as the definitional core of the whole arrangement.

“The definition is in the name, it’s consensual, which means everyone’s talked about it, everyone’s agreed to it, they know who’s dating who….”

That is also what separates it from cheating. Nothing is hidden, so nothing is being taken without a partner’s agreement.

The rules can look different for every couple. But the requirement that everyone knows and agrees stays constant.

That framing also matters for anyone still deciding whether an open relationship is right for them. The question is never how many partners are involved, or what the arrangement looks like from outside.

It is only ever whether everyone involved has actually agreed to it, and knows what is happening.

Rule #3: Set Boundaries With Your Partner(s) and For Yourself

Nicole said it can be easy to get carried away with the poly lifestyle.

She used the word “polysaturated” to describe the exhaustion of taking on too many partners, going on too many dates, and fielding too many messages. It’s a tsunami of conflicting emotions.

That’s why it’s important to take it slow, she says, “Set boundaries in the relationship, but also set boundaries for yourself.

If it gets too much, pull back a little bit and reflect on what went wrong and why you’re feeling overwhelmed. Make sure you’re doing things because you want to, not because you feel you have to.”

Kathy Slaughter says, “[the open communication makes] it entirely distinct from cheating because there’s no element of betrayal. It’s not monogamous, which means there’s no expectation of sexual exclusivity and possibly no expectation of emotional exclusivity either.”

But mistakes happen too.

Cheating, lying, and accidental boundary crossings can occur in any relationship, especially when expectations were never made clear.

“Even if they didn’t mean it, it can be very hurtful when you feel a boundary has been crossed. So make sure you discuss what you’re comfortable with and what you’re not comfortable with early on.

“Keep this conversation going throughout the relationship as well. Because things can come up as you go,” David said.

Molly Roden Winter has written about this herself.

She’s the author of More: A Memoir of Open Marriage, and she and her husband set some initial rules when they first opened their marriage.

These rules were designed to limit emotional intimacy and keep their outside relationships purely sexual in nature. Let’s break down these rules and their intended purpose:

1. No falling in love with others: This rule was intended to protect the primary relationship by preventing either partner from developing deep emotional attachments to their outside partners. The fear was that falling in love with someone else could threaten the stability and primacy of the marriage.
2. No sleepovers: Sleepovers were prohibited as they were seen as a marker of emotional intimacy. Spending the night with an outside partner could foster deeper emotional bonding and blur the lines between a sexual connection and a more significant relationship.
3. Not dating the same person more than twice in one week: This rule aimed to keep outside relationships casual and prevent them from becoming too regular or routine. By limiting the frequency of dates with the same person, the couple hoped to maintain a sense of distance and prevent outside relationships from becoming too entangled with their daily lives.
4. No one in the neighborhood: Dating people in close proximity, such as neighbors, was off-limits. This rule was set to prevent awkward encounters, potential gossip, and the risk of outside relationships impacting their day-to-day lives and social circles.

The overarching goal of these rules was to create clear boundaries between the couple’s primary relationship and their outside sexual connections.

The idea was to limit risk.

By keeping things purely physical, they hoped to avoid the challenges that can come with opening up a marriage.

However, as Molly discovered over time, these rules centered around limiting emotional intimacy ultimately proved unsatisfying for her.

She found herself craving deeper connections and realized that she wanted to explore polyamory, which involves more than just sexual openness.

Needs differ.

Every individual and couple wants something different when it comes to non-monogamy, and those needs can evolve over time as people learn more about themselves.

Rule #4: Never Assume and Be Open to Change

Talk Through Specifics, Don’t Assume

Nicole thinks it’s important to never assume. “Everyone comes from a different microculture and upbringing and what’s normal for one person may not be normal for the other.”

When she started dating Dave, she assumed that “open” referred to sex only and was hurt when she found out Dave was going on actual dates. “That’s why it’s so important to talk things through beforehand, like what are we actually doing here? What are your expectations?”

However, she acknowledged that “sometimes preemptive conversations aren’t possible. Things happen and then you’re faced with it, and you realize that you’re uncomfortable with something you hadn’t considered before.”

That small habit of checking rather than assuming is what kept their arrangement from turning into a guessing game.

Stay Open as Feelings Change

Dave agreed and added, “It’s important to be prepared for change. How you feel about certain scenarios can change and so your boundaries and rules should stay open for discussion.

If I was okay about something initially but changed my mind, my partner should be open to discussing that with me so neither one of us feels resentful or hurt. You have to move together and communicate.”

This attitude matters.

Interviewed couples describe it as necessary for an arrangement to keep working as circumstances shift. Holding a partner to an old agreement, once their feelings have changed, tends to breed resentment rather than closeness.

Rules should stay a living conversation. That’s what lets a couple keep choosing the arrangement, rather than just enduring it.

Rule #5: Deal with Insecurity Head-On

Chris spoke of his relationship with insecurity, “When I’m generally feeling low or anxious, I feel much more insecure about my relationship. If I see my partner with someone else, it makes me crazy jealous, and I feel neglected.

“That’s not the case when I’m feeling good about myself – when I feel good, I don’t feel insecure at all.

Chris put his finger on it.

“So it’s about finding a balance because it shouldn’t just be about me, I don’t want to deprive Dave.

But I also think it’s more fun for everyone when we’re both happy.”

Nicole believes it’s important to note that if you’re an insecure person, an open relationship might not be for you. If your relationship is on the rocks, opening things up might tear you apart rather than bring you closer together.

“That’s the beauty of open relationships – they can bring you closer to your partner as you explore the world of relationships together. But if you’re in a bad place, it might be best to keep it simple.”

James added “Jealousy and insecurity are normal in any relationship, but especially in open ones. It’s about how you direct that energy.

Don’t let it eat you up because it can lead you down a path of emotional manipulation where one partner blames and guilt-trips the other.

It can break trust create shame, and ultimately destroy a relationship. It’s always better to talk openly about it.”

How to love more than one person without jealousy ruining everything

Being prepared to deal with jealousy is a key component of successfully navigating an open relationship.

That’s normal. Jealousy is a natural emotion, and it can surface when a partner is intimate with someone else. But it often stems from underlying insecurities and fears rather than the situation itself.

As couples therapist Esther Perel explains, feeling jealous here isn’t a sign that something has gone wrong: “It does involve jealousy, by the way. That’s okay.” Perel reframes the goal entirely: “The goal is not to avoid any jealousy. The goal is to learn to live with it.”

Dealing with jealousy constructively involves:

1. Self-awareness: Each partner should take time to introspect and identify the root causes of their jealousy. This may include fears of abandonment, feeling inadequate or replaceable, or insecurities around self-worth.
2. Honest communication: Partners should openly discuss their jealous feelings with each other, using “I” statements to express how they feel without blaming or accusing. For example, “I felt jealous and insecure when you went on a date with Alex because I worry you’ll find them more attractive than me.”
3. Active listening and validation: The partner hearing their partner’s jealous feelings should listen attentively, acknowledge and validate those feelings, and show empathy and understanding. They should avoid getting defensive or dismissive.
4. Reassurance: Partners should offer each other reassurance of their love, commitment, and the importance of their relationship. This may involve expressing appreciation, planning quality time together, and reaffirming relationship agreements and boundaries.
5. Working on personal growth: Each partner should take responsibility for working on their own insecurities and self-esteem, whether through self-reflection, therapy, or other personal growth practices. Strengthening one’s own sense of self can help minimize jealousy over time.
6. Adjusting as needed: If jealousy persists or feels unmanageable, partners should be willing to revisit their agreements and make adjustments as needed. This might involve slowing down the pace of outside relationships, setting new boundaries, or even closing the relationship temporarily to focus on strengthening the primary bond.

Conquering jealousy is an ongoing process that requires time, patience, and active work from both partners. It involves developing greater self-awareness, emotional regulation skills, and the ability to communicate vulnerably and offer reassurance.

By committing to working through jealousy together, couples can build greater trust, security, and intimacy in their relationship.

Rule #6: Reject Possession and Embrace Compersion

James doesn’t struggle with insecurity very often, he says, “It’s natural for me to feel happy for my partner rather than jealous. I reject possession – I don’t own anyone. An open relationship is much healthier when you have compersion.”

Compersion means feeling genuine joy in a partner’s happiness, even when you’re not involved.

It can mean feeling excited for a partner going on a date, or having sex with someone else.

Nicole came to feel this over time.

“At first, I never wished James a good time when he went out because I’d sometimes feel anxious and insecure. But now I love it when he goes because I can have a bit of “me time” and I don’t even think about him.

“I genuinely wish him a good time and hope he has fun.”

Sophie sees compersion as proof of confidence. It shows you know your own worth.

“I don’t get jealous when Nick and Damien tell me about their other relationships and experiences. I think Nick can be a bit more insecure, in part because it was his first open experience.

Initially, he asked me whether we could be primaries but over time, he’s come to like the set-up we have. I think this whole experience has been really good for his self-confidence.”

Rule #7: Own Your Mistakes

Nicole spoke of the importance of owning your mistakes, “Early on in our relationship, I went to meet a guy called Tobi. I also had a good friend called Tobi, so James assumed I was going to see him.”

She explained what happened next.

“When I got home and told him about my evening, he was surprised and confused. We talked it out, I apologized and owned my mistake, and we were able to move on from that.”

Dave has felt insecure about things Chris has done before.

When that happens, he says, “It was helpful when he accepted the feedback I gave him and actually listened to what I was saying.

The most important thing is to adjust your behavior because that makes your partner feel heard and respected.”

In short: stay conscious of your own defensiveness, acknowledge how your partner feels, and apologize when that’s appropriate.

Rule #8: Tend to Your Primary Relationship

Keep Dating Each Other

Staying present matters too.

“You can get lazy with each other, especially if you live together,” Nicole says, “We would go on dates with other people but hadn’t actually been on a date together for months – when we realized that, we knew we had to change something.”

Nicole put it plainly.

“You have to put in the effort, go on dates, and have fun together – just like in any other relationship. So now we make sure we do things just the two of us as often as possible.”

Chris said that when he goes on dates, Dave will take him there and pick him up and that makes him feel like “We’re in it together. We’re there for each other and not against each other.”

Balancing More Than One Relationship

For Sophie, who has two relationships, it’s important to put equal amounts of energy and time into both, “Of course, they have different needs but the main thing is that both of them feel loved and cared for. The same goes for me, I would hate it if I would feel one of them slipping away without knowing why.”

Sophia’s arrangement is similar.

She maintains two significant relationships that don’t overlap, with her at the pivot point of what’s sometimes called a “hinge relationship.”

The same principle applies here. Neither connection should feel like the neglected one.

It’s the same balancing act described above, just carried out across two people instead of one outside connection. No one keeps score, but everyone notices when the balance tips.

Rule #9: Safe Sex Practices

Everyone I spoke to agreed that using condoms with people other than your primary partner is essential. James said he and Nicole are “fluid bonded” meaning they do not use condoms with each other, but they do with everyone else.

Chris said “You should always discuss that with your partner first anyway. But if there was an accident like the condom broke or something then you definitely have to speak to your partner about it and maybe even get checked.”

Sophia uses condoms with both of her boyfriends because they also sleep with other women. She adds: “Condoms are good, but you should also get checked at the sexual health clinic regularly.

It’s just safer and more enjoyable that way. Did you know you can get Chlamydia in your throat?”

Rule #10: Consider Seeking Community

Sophia thinks that open relationships aren’t just about sex, “They’re about community and building friendships with like-minded people, having interesting conversations – but of course, romance and sex, too.”

Dave disagreed, “While going to sex parties and meeting people is super fun, I don’t see the people we meet there as friends.

Our priority is working on our relationship, not building new ones. For us, friends are off limits – we have to sleep with people outside of our friendship circle”

Open Relationships vs. Other Non-Monogamous Structures

Open relationships sit inside a broader category researchers call ethical non-monogamy. That means relationships built on explicit agreement, not secrecy.

Several related structures get confused with it. Each works differently once you look at who is involved, and how emotionally serious the outside connections are meant to be.

Open Relationships vs. Polyamory

The clearest point of confusion is with polyamory. In an open relationship, connections outside the primary couple tend to stay casual. The two original partners usually remain each other’s main priority.

Polyamory more often extends real emotional attachment to outside partners, not just a sexual one. It also expects those relationships to last.

Research on polyamorous networks found something interesting. “Secondary” partners are rated lower than “primary” partners on investment and commitment, but not on love or sexual satisfaction (Balzarini et al., 2019). That’s closer to how open relationships treat outside connections than the popular idea that polyamory does away with hierarchy altogether.

Sophia’s setup is a good example.

She maintains two significant relationships that don’t overlap, sometimes called a “hinge relationship.” It can exist under either label, but tends to sit closer to open-relationship territory when the outside connections stay independent, as hers do.

Swinging, Relationship Anarchy, and “Monogamish” Arrangements

Other structures work differently again. Swinging usually centers on couples attending events together specifically to meet other couples for sex. It’s a shared activity, not something pursued independently. That’s the opposite of how the couples in this article describe dating separately.

Relationship anarchy goes further. It rejects the idea of a “primary” couple altogether, treating every connection as free to develop on its own terms.

A narrower version is sometimes called “monogamish.”

That describes a couple who are monogamous almost all of the time but occasionally allow outside sexual contact, rather than an ongoing arrangement.

All of these sit outside what researchers call mono-normativity. That’s the common assumption that lifelong sexual exclusivity is the natural or healthiest default. It shapes how non-monogamous couples are perceived by friends, family, and even some healthcare providers, a theme the next section explores.

None of these labels is more “correct” than another.

The couples interviewed for this piece make the same point throughout: the right structure is whatever two people actually negotiate for themselves.

What Recent Research Shows

Relationship Quality and Wellbeing

A common assumption is that monogamy is simply the healthier relationship structure. Conley, Matsick, Moors, and Ziegler (2017) tested that directly. They reviewed the existing research on consensually non-monogamous (CNM) relationships. They also ran their own study, comparing trust, satisfaction, passion, and commitment between monogamous and CNM participants.

The results were similar either way. Both the review and their own comparison found few consistent differences in relationship functioning between the two groups.

A second study in the same paper found something else worth noting. Researchers who reported findings favoring polyamory were rated as more biased than researchers reporting an equivalent finding favoring monogamy. The underlying studies were methodologically identical.

A separate review covers swinging, open relationships, and polyamory together. It reports a similar pattern: people practicing consensual non-monogamy show broadly comparable psychological wellbeing and relationship quality to monogamous couples (Rubel & Bogaert, 2015).

One qualification stands out. CNM couples reported somewhat higher trust and personal growth than monogamous couples in a separate comparison (Moors et al., 2017).

Both reviews caution this may partly reflect who volunteers for this kind of research. People already comfortable talking openly about their relationship structure may be more likely to take part. That’s different from proving non-monogamy itself improves relationship quality.

Jealousy, Disclosure, and Stigma

A large, nationally representative U.S. survey offers different evidence. Levine, Herbenick, Martinez, Fu, and Dodge (2018) analyzed data from 2,270 American adults. About 4% of people currently in a relationship described it as open.

People in open relationships were more likely to be male, to identify as gay, lesbian, or bisexual, and to use condoms consistently.

They were no more educated or wealthy, though. That directly contradicts the stereotype of non-monogamy as an “educated elite” lifestyle choice.

Jealousy itself doesn’t disappear in an open relationship. But recent evidence suggests it works differently.

Swanson, Balzarini, Mogilski, and Himes (2026) surveyed 512 adults across 62 countries, comparing monogamous and consensually non-monogamous participants on perceived “mate value,” conflict, jealousy, and mate-guarding behavior.

Feeling less desirable than a partner predicted more conflict in both groups equally. Jealousy itself was lower for the non-monogamous group, though. Sexual and possessive jealousy both dropped compared to monogamous couples.

Open communication about jealousy was linked to less conflict, specifically within that group. That echoes what the couples interviewed here describe.

Beyond the couple, disclosing an open relationship to the wider world carries its own risk. Interviews with 32 non-monogamous Australians found reactions were more often negative than positive.

Practical barriers played a role too. Employment concerns, fostering and adoption restrictions, and healthcare providers with little training in non-monogamy all shaped disclosure decisions, independently of how the relationship itself was going (Anderson et al., 2025).

One participant explained it this way: “I think being non-monogamous opens you up to being seen as promiscuous.”

Another described a subtler, ongoing friction. “Almost every day there’s some sort of reminder that my relationships aren’t normal.”

Around a third of participants in the same study described positive reactions. So these accounts illustrate a real risk, not the only possible outcome.

References

Anderson, J. R., Bondarchuk-McLaughlin, A., Rosa, S., Goldschlager, K. D., & Hinton Jordan, D. X. (2025). A qualitative exploration of the experiences of disclosing non-monogamy. Archives of Sexual Behavior, 54(4), 1481–1495. https://doi.org/10.1007/s10508-025-03119-0

Balzarini, R. N., Dharma, C., Kohut, T., Campbell, L., Lehmiller, J. J., Harman, J. J., & Holmes, B. M. (2019). Comparing relationship quality across different types of romantic partners in polyamorous and monogamous relationships. Archives of Sexual Behavior, 48(6), 1749–1767. https://doi.org/10.1007/s10508-019-1416-7

Conley, T. D., Matsick, J. L., Moors, A. C., & Ziegler, A. (2017). Investigation of consensually nonmonogamous relationships. Perspectives on Psychological Science, 12(2), 205–232. https://doi.org/10.1177/1745691616667925

Levine, E. C., Herbenick, D., Martinez, O., Fu, T.-C., & Dodge, B. (2018). Open relationships, nonconsensual nonmonogamy, and monogamy among U.S. adults: Findings from the 2012 National Survey of Sexual Health and Behavior. Archives of Sexual Behavior, 47(5), 1439–1450. https://doi.org/10.1007/s10508-018-1178-7

Moors, A. C., Matsick, J. L., & Schechinger, H. A. (2017). Unique and shared relationship benefits of consensually non-monogamous and monogamous relationships. European Psychologist, 22(1), 55–71. https://doi.org/10.1027/1016-9040/a000278

Rubel, A. N., & Bogaert, A. F. (2015). Consensual nonmonogamy: Psychological well-being and relationship quality correlates. The Journal of Sex Research, 52(9), 961–982. https://doi.org/10.1080/00224499.2014.942722

Swanson, F. L., Balzarini, R. N., Mogilski, J. K., & Himes, T. M. (2026). How perceived mate value discrepancies are related to jealousy, mate guarding, intrasexual competition, and partner conflict in monogamous and consensually non-monogamous relationships. Evolution and Human Behavior, 47(5), Article 106936. https://doi.org/10.1016/j.evolhumbehav.2026.106936

Final Thoughts

From these conversations, I learned that open relationships must be based on trust and honesty. You have to check in with your partner as much as you have to check in with yourself.

The rules are fluid, and each couple has their own ideas, needs, wishes, and boundaries.

But across all these rules, the underlying factor is communication. Without proper communication, the relationship will fall apart – but isn’t that true for all types of relationships?