Why Am I So Jealous?

Jealousy is a natural emotion that can arise for various reasons. Jealousy often involves a mix of complex emotions, including insecurity, anxiety, anger, and inadequacy.

While feeling jealous occasionally is normal, it can become problematic when these feelings are excessive, irrational, or controlling (i.e., unhealthy jealousy).

Understanding these underlying emotions is crucial for managing jealousy effectively.

Here are some common reasons why you may feel jealous in your relationship:

Insecurities

Jealousy often stems from feelings of insecurity, where you may feel uncertain about your own worth or desirability in comparison to others.

You might think that you’re not good enough or that you’re somehow lacking in comparison to others.

Mental health and wellbeing expert Andrea M. Darcy explains that “when we feel happy and secure, we are unlikely to experience jealous feelings over mere suspicions. But when we feel vulnerable or less than? It becomes harder to trust that your relationships will thrive and that your partner will not abandon you.”^[1]

When individuals feel insecure about themselves, their self-worth, or their relationship, they are more likely to see other people as a threat and become susceptible to jealousy. 

Here are some examples of how personal insecurities can lead to jealousy:

• Physical Appearance: If someone is insecure about their physical appearance, they might become jealous when their partner interacts with someone they perceive as more attractive.
• Past Experiences: Someone who has been cheated on before may be more prone to jealousy in their current relationship, fearing a similar outcome.
• Comparisons: Insecure individuals are more likely to compare themselves to others and perceive others as threats. You may experience jealousy when you see couples who seem happier or more secure.

Negative Past Relationships

Past experiences of betrayal, infidelity, or abandonment can contribute to feelings of jealousy.

If you have been hurt or betrayed in previous relationships, you might carry these unresolved emotions into new ones. You may worry about your partner’s loyalty and fear being hurt in similar ways.

Being cheated on before can make you prone to jealousy. It can flare if your partner flirts with others or seems less committed than you are.

Low Self-Esteem

Andrea M. Darcy notes that “if you are constantly jealous in relationships, the roots of jealousy will lie in how you feel about yourself. This means that jealousy can particularly be a problem if we suffer low self-esteem.”^[1]

Low self-esteem can lead to feelings of inadequacy and the belief that others are more desirable or successful than you.

This self-doubt and suspicion can fuel feelings of jealousy when you perceive others as a threat.

For example, if someone doesn’t feel deserving of love and affection, they may be constantly worried that their partner will find someone better.

Common characteristics of people with low self-esteem include:

• Engaging in negative self-talk
• Second-guessing their decisions and actions
• Doubting their abilities and feeling unsure of themselves
• Avoiding social situations
• Struggling to initiate and maintain relationships
• Believing they are not deserving of love or attention
• Being highly sensitive to criticism
• Being jealous of their partner’s success or accomplishments
• Seeking external validation

Inadequate Communication

Poor communication can cause misunderstandings and leave concerns unaddressed. Partners may make assumptions about each other’s intentions, leading to feelings of insecurity and jealousy.

For example, insecure individuals may misinterpret innocent communication as flirtation or romantic interest. They might become jealous when their partner has a friendly conversation with a colleague or a friend.

Inadequate communication is particularly common in long-distance relationships.

The lack of physical proximity and increased uncertainty about the relationship can make people more hypervigilant of their partners’ actions and intentions. 

The limited ability to verify information firsthand can result in filling in gaps with assumptions and imagination. When you are not physically together, it is easy to start overthinking and imagining what your partner might be doing. 

Psychological Theories of Jealousy

Psychologists explain jealousy in three main ways. All three treat it as a real, common response to a perceived threat to a valued relationship, not as a character flaw. They disagree about where it comes from:

• Evolutionary theory: Jealousy evolved to protect partnerships, and men and women may differ in which betrayal hurts most.
• Cognitive appraisal: Jealousy depends on how you interpret a threat, including your beliefs about your own worth and options.
• Attachment theory: Your attachment style shapes how you express and manage jealousy more than how strongly you feel it.

Evolutionary Theory

The evolutionary account sees jealousy as a response shaped by the different risks that men and women faced from a partner’s infidelity.

A man risked unknowingly raising a rival’s child. A woman risked losing a partner’s time, resources, and protection to a rival.

Buss et al.^[2] tested this idea. Undergraduates chose which would upset them more: a partner’s deep emotional attachment to someone else, or a partner having passionate sex with someone else.

Men were more likely than women to pick the sexual betrayal. Women were more likely to pick the emotional one. Men also showed stronger physiological reactions when imagining sexual infidelity.

The finding is contested.

DeSteno and Salovey^[3] argued that the forced-choice format itself manufactures much of the sex difference. Harris^[4] reviewed the self-report, physiological, and violence evidence and found it much less consistent across measures than strong versions of the theory claim.

A large later study found the same pattern in teenagers. Among 1,266 Norwegian students aged 16 to 19, males found imagined sexual infidelity more distressing than females did^[5]. This held whatever their age or relationship experience.

It used the same forced-choice method, so it does not answer the critics’ concern.

Cognitive Appraisal Theory

Cognitive-appraisal theory sets evolution aside. It treats jealousy as the result of how you judge a threat to a valued relationship.

How intense and destructive it becomes depends on your beliefs about your own worth, your alternatives, and how much control you have^[6]. This fits the causes above.

Insecurity, low self-esteem, and poor communication do their damage by distorting the appraisal, not by changing the threat itself. An unanswered text can look like a rival or like a busy partner.

Cognitive behavioral therapy is a talking therapy that tests whether a thought is based on evidence. It targets the interpretation, not the feeling itself.

Jealousy often lands in the body first. In one interview study, women described this physical jolt^[7]. Madeline described it this way:

“definitely like being nauseated, but my stomach was just turning, like almost a sort of seasick feeling.”

Another participant, Claire, saw hers differently. She read her jealousy as information about what she valued. In her words:

“jealousy is telling me that I care a lot about this person and I’m worried about losing them.”

Attachment Style and Jealousy

Attachment theory looks to your attachment style, the pattern of relating you built from early caregiving and carry into adult romantic bonds.

Sharpsteen and Kirkpatrick^[8] asked adults to recall a real episode of jealousy. Secure and insecure adults felt it about equally intensely. They differed in what they did next:

• Secure attachment: Adults tended to talk openly with their partner and said the episode brought them closer.
• Anxious attachment: Adults were more likely to respond with anger, blame, and attempts to control their partner.

The gap between healthy and excessive jealousy may lie less in how strongly you feel and more in how you handle it.

Touch may help too. In an experiment, people made to feel jealous felt less so after affectionate touch from their partner.

The effect appeared only in people high in attachment anxiety, a fear of being rejected or abandoned^[9]. Verbal reassurance did not have the same effect.

Can you trust someone and still be jealous?

It is possible to trust someone and still experience jealousy. Trust and jealousy are not mutually exclusive emotions, and they can coexist in a relationship.

Research supports this. Đurić et al.^[10] ran four studies with 1,466 people in the United States, the United Kingdom, and the Netherlands.

Feeling jealous, or seeing a partner as jealous, went with feeling ambivalent toward that partner. Ambivalence means holding positive and negative feelings at once.

Jealousy often sits alongside caring rather than replacing it. The authors argue this helps explain why jealousy persists in relationships that are otherwise satisfying.

Trust involves believing in your partner’s honesty, integrity, and commitment to the relationship. Jealousy often arises from a fear of losing someone or something important.

It often comes from inside you. It may not reflect your partner’s behavior at all.

Trusting someone does not guarantee that jealousy will never occur, as people can still experience moments of insecurity or vulnerability. These feelings may be triggered by various factors, such as past experiences, personal insecurities, or external circumstances.

But healthy and controlling jealousy are not the same thing.

Whereas healthy levels of jealousy can coexist with trust, excessive or irrational jealousy can be detrimental to a relationship.

A mild, occasional pang can even help. It can show that the relationship matters to you and open a useful conversation about boundaries and expectations. What counts is how intense it is, how often it comes, and how you express it.

This applies to low-intensity jealousy that does not restrict a partner’s freedom. It is not a license for surveillance, possessiveness, or manipulation.

Can social media affect jealousy?

Social media can significantly affect jealousy in romantic relationships.

Social media often presents idealized versions of people’s lives, including their relationships. Seeing other couples posting happy and loving pictures can lead to comparisons and feelings of inadequacy in your own relationship.

Additionally, interactions between your partner and others on social media, such as liking, commenting, or messaging, can trigger jealousy. Innocent interactions are easily misread as flirtation or romantic interest.

Furthermore, seeing your partner’s interactions with their exes on social media can be a common source of jealousy. It might raise questions about those relationships. Are there lingering feelings?

Checking up on a partner online can make things worse. In a two-year study of 322 young adults, social media jealousy predicted more electronic partner surveillance, such as monitoring a partner’s phone, messages, or accounts.

That surveillance, in turn, predicted lower relationship satisfaction a year later^[11].

As couples therapist Esther Perel explains, jealousy signals distrust. On Where Should We Begin?, she put it this way:

“I don’t trust, therefore I put surveillance in place to help me trust.”

But surveillance, she argues, is about control. Trust, she says, means tolerating what you cannot fully know.

The more a person surveils, she suggests, the less they trust, and the more surveillance they need. A partner can end up feeling suffocated rather than reassured.

Social media can exacerbate jealousy. What matters most is how you and your partner handle these challenges together. Healthy communication and trust-building are crucial in managing jealousy related to social media.

Julia Simkus edited this article.

References

1. A. Darcy, Jealousy in relationships – Is it all in your head? Harley Therapy, 2023. [Online]. Available: https://www.harleytherapy.co.uk/counselling/jealousy-head.htm
2. D. M. Buss, R. J. Larsen, D. Westen, and J. Semmelroth, “Sex differences in jealousy: Evolution, physiology, and psychology,” Psychological Science, vol. 3, no. 4, pp. 251–255, 1992, doi: 10.1111/j.1467-9280.1992.tb00038.x.
3. D. DeSteno and P. Salovey, “Genes, jealousy, and the replication of misspecified models,” Psychological Science, vol. 7, no. 6, pp. 376–379, 1996, doi: 10.1111/j.1467-9280.1996.tb00393.x.
4. C. R. Harris, “A review of sex differences in sexual jealousy, including self-report data, psychophysiological responses, interpersonal violence, and morbid jealousy,” Personality and Social Psychology Review, vol. 7, no. 2, pp. 102–128, 2003, doi: 10.1207/s15327957pspr0702_102-128.
5. P. H. H. Larsen, M. Bendixen, T. V. Grøntvedt, A. M. Kessler, and L. E. O. Kennair, “Investigating the emergence of sex differences in jealousy responses in a large community sample from an evolutionary perspective,” Scientific Reports, vol. 11, Art. no. 6485, 2021, doi: 10.1038/s41598-021-85997-7.
6. G. L. White, “A model of romantic jealousy,” Motivation and Emotion, vol. 5, no. 4, pp. 295–310, 1981, doi: 10.1007/BF00992549.
7. J. Hamilton, N. R. Morrison, and A. N. Gioia, “Jealousy: A comparison of monogamous and consensually non-monogamous women’s experience,” Cogent Mental Health, vol. 3, no. 1, Art. no. 2283006, 2024, doi: 10.1080/28324765.2023.2283006.
8. D. J. Sharpsteen and L. A. Kirkpatrick, “Romantic jealousy and adult romantic attachment,” Journal of Personality and Social Psychology, vol. 72, no. 3, pp. 627–640, 1997, doi: 10.1037/0022-3514.72.3.627.
9. K. J. Kim, B. C. Feeney, and B. K. Jakubiak, “Touch reduces romantic jealousy in the anxiously attached,” Journal of Social and Personal Relationships, vol. 35, no. 7, pp. 1019–1041, 2018, doi: 10.1177/0265407517702012.
10. M. Đurić, F. Righetti, G. Zoppolat, C. Lohmer, and I. K. Schneider, “Mixed signals: Romantic jealousy and ambivalence in relationships,” Emotion, vol. 25, no. 4, pp. 853–868, 2025, doi: 10.1037/emo0001458.
11. S. Métellus, M.-P. Vaillancourt-Morel, A. Brassard, and M.-È. Daspe, “Attachment anxiety and relationship satisfaction in the digital era: The contribution of social media jealousy and electronic partner surveillance,” Journal of Marital and Family Therapy, vol. 51, no. 4, Art. no. e70074, 2025, doi: 10.1111/jmft.70074.

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