New Study Challenges the Myth That Relationships With Narcissists Quickly Fall Apart

New research suggests that romantic relationships with narcissistic partners are generally less satisfying, but they do not deteriorate as rapidly over time as many psychologists had predicted. The findings challenge the popular belief that relationships with narcissists begin with intense excitement before quickly descending into dysfunction.

The study, published in the Journal of Personality, followed thousands of couples over a period of up to six years. Researchers examined how specific aspects of grandiose narcissism in one partner influenced relationship satisfaction for both members of the couple over time.

Narcissism and Romantic Dynamics

Narcissism is broadly defined as a personality trait characterized by an inflated sense of self-importance and a strong need for admiration. Previous theories have suggested that narcissistic individuals often make highly positive first impressions but become difficult partners as their self-centered behavior gradually emerges.

Psychologist Gwendolyn Seidman explained that most previous research focused primarily on narcissistic individuals themselves. Together with co-author William J. Chopik, she sought to investigate how narcissistic traits affect both partners’ relationship satisfaction throughout the course of a relationship.

The researchers drew on the “Chocolate Cake Model,” which proposes that dating a narcissist is initially rewarding and exciting but gradually becomes unhealthy and unsatisfying. They set out to test whether this theory accurately reflects long-term relationship outcomes.

Admiration Versus Rivalry Traits

The study focused on two major dimensions of grandiose narcissism: admiration and rivalry.

Narcissistic admiration reflects a belief in one’s own uniqueness and superiority and is often expressed through confidence, charm, charisma, and self-promotion.

Narcissistic rivalry, in contrast, represents a more antagonistic aspect of narcissism. Individuals high in rivalry tend to devalue others, react aggressively during conflicts, and work hard to protect their sense of superiority whenever they feel challenged or criticized.

Seidman and Chopik wanted to determine whether these two dimensions were associated with lower relationship satisfaction and whether they contributed to a faster decline in relationship quality over time.

Large, Long-Term Couple Survey

The researchers analyzed data from a nationally representative sample of German adults. The full dataset included 5,869 heterosexual couples who had been together for varying lengths of time, ranging from relatively new relationships to long-term partnerships.

A separate subgroup consisted of 533 couples who had been dating for less than one year at the beginning of the study. Examining these newer couples allowed researchers to test whether narcissistic traits have a unique impact during the early “honeymoon phase” of a relationship.

Participants completed a brief questionnaire measuring narcissistic admiration and rivalry using a five-point scale. Each year, for up to six years, both partners also rated their overall relationship satisfaction on a scale ranging from 0 to 10.

Rivalry Is Linked to Lower Satisfaction

Across the broader sample of established couples, higher levels of narcissistic rivalry in one partner were associated with lower relationship satisfaction for both partners. The association was particularly strong for the narcissistic individuals themselves.

According to the authors, people high in rivalry may maintain unrealistic expectations about how rewarding a relationship should be. This sense of entitlement can leave them chronically dissatisfied, even when their partners are supportive and committed.

Surprisingly, among couples who had been together for less than six years, narcissistic rivalry was not associated with lower relationship satisfaction. These relationships appeared more resistant to the negative effects of rivalry than many theories would predict.

No Evidence of a Rapid Relationship Collapse

Relationship satisfaction declined modestly over time for most couples in the study, consistent with previous research showing that the intensity of early romance naturally fades as relationships mature.

However, narcissism did not accelerate that decline.

Couples involving a partner high in narcissistic rivalry tended to start from a lower level of relationship satisfaction, but their satisfaction decreased at roughly the same rate as that of couples with lower narcissistic traits. Researchers found no evidence of the dramatic downward trajectory often assumed in relationships involving narcissistic individuals.

Seidman noted that among the newest couples, narcissism was not associated with satisfaction at all. The negative effects only became apparent when examining the larger sample of relationships of varying lengths, suggesting that narcissistic traits may influence relationships in a slower and more gradual way than previously believed.

Hidden Costs Beyond Satisfaction

The findings do not suggest that narcissistic rivalry is harmless. The researchers argue that its effects may emerge in ways that are not fully captured by a single annual rating of overall relationship satisfaction.

For example, rivalry may gradually undermine a partner’s self-esteem, autonomy, or sense of competence without immediately affecting how satisfied they feel with the relationship as a whole.

Likewise, periods of intense conflict or emotional distress may create sudden turning points that are difficult to detect using annual assessments. As a result, measures of overall satisfaction may underestimate the impact of antagonistic narcissistic behavior on everyday well-being.

Limitations and Future Research

The study has several limitations. Narcissistic traits were measured using relatively brief questionnaires, and relationship satisfaction was assessed with a single-item measure, which may not capture more nuanced aspects of relationship functioning.

The researchers also note that the study primarily included couples willing and able to remain in a long-term panel study. Highly unstable, severely distressed, or abusive relationships may have ended before they could be adequately represented in the data.

Seidman emphasized that the study focused on narcissistic traits within the general population rather than clinically diagnosed narcissistic personality disorder. Individuals meeting diagnostic criteria for the disorder likely represented only a small portion of the sample, if they were included at all.

Future research will use more detailed assessments and more frequent follow-up periods, particularly during the earliest stages of dating, to better understand when narcissistic traits begin to create relationship difficulties.

Seidman’s ongoing work also examines how narcissistic partners may interfere with their partner’s fundamental psychological needs, including autonomy, competence, and a sense of personal agency.

The study, titled "From Spark to Strain? Changes in Relationship Satisfaction as a Function of Narcissistic Admiration and Rivalry," suggests that the effects of narcissism on relationships may be more gradual and complex than previously believed.

Article prepared by Victoria Caldwell.