How Narcissism Actually Affects Relationship Satisfaction

Research published in the Journal of Personality suggests that the impact of narcissism on romantic relationships is more nuanced than the common belief that narcissistic partners gradually destroy relationship satisfaction over time.

The study, led by Gwendolyn Seidman, an associate professor in the psychology department at Michigan State University, tracked 5,869 couples for up to six years using longitudinal data. The researchers focused on two distinct dimensions of narcissism to determine how they specifically influence couple dynamics.

Distinguishing Admiration from Rivalry

The research differentiates between two ways individuals with narcissistic traits maintain an inflated positive self-perception: narcissistic admiration and narcissistic rivalry.

Individuals exhibiting narcissistic admiration attempt to maintain their self-image by trying to impress others. In contrast, those exhibiting narcissistic rivalry attempt to establish superiority by putting other people down.

The study found that these two traits have vastly different effects on relationship health. Narcissistic rivalry was consistently linked to lower relationship satisfaction for both the individual with the trait and their partner. However, narcissistic admiration had no meaningful effect on the satisfaction levels of either partner.

Narcissists have two different ways to maintain their inflated positive self-perceptions. They can puff themselves up by trying to impress others (narcissistic admiration) or they can put other people down to show they are superior to them (narcissistic rivalry).

Gwendolyn Seidman, Michigan State University

Timeline of Relationship Satisfaction

A central finding of the research challenges the assumption that narcissists are initially charming but cause a steady, steep decline in relationship quality over time. The data indicated that the rate of decline in satisfaction was not steeper for couples where one partner scored highly on narcissism compared to other couples.

the researchers examined couples who had been together for one year or less and found no association between narcissistic traits and relationship satisfaction during this early period.

Seidman noted that the reality may be more complicated than the popular narrative of gradual damage. She suggested several possibilities for these findings:

• There may be a specific turning point in the relationship where satisfaction drops sharply.
• The honeymoon phase may simply last longer when one partner is narcissistic.
• The negative impact may not manifest as a decline in overall relationship satisfaction, but rather through the gradual erosion of a partner’s sense of agency or self-esteem.

Broader Psychological Context

While the Michigan State University study highlights the difference between admiration and rivalry, other research into narcissism and couple satisfaction has explored the mechanisms that can mitigate or exacerbate these effects.

Research published via ScienceDirect indicates that the relationship between vulnerable or grandiose narcissism and relationship satisfaction can be influenced by mediating factors. Specifically, the use of positive conflict resolution strategies and the ability to accept differences between partners played significant roles in how narcissism affected the couple.

These findings suggest that the outcome of a relationship involving a narcissistic partner is not predetermined solely by the personality trait, but is also shaped by how the couple manages conflict and handles individual differences.

By identifying these specific traits and patterns, researchers and clinicians aim to better understand why certain relationships struggle and how personality traits influence the long-term well-being of partners.