I can offer some general insights into potential reasons why a person, even someone with covert narcissistic traits, might choose to stay in a relationship after discovering infidelity.
Narcissistic Supply: Narcissists thrive on attention, admiration, and validation from others. They often see their partners as a source of narcissistic supply, which feeds their ego and sense of self-importance. Even if their partner cheated, the narcissist may feel the need to keep them around to continue receiving this supply.
Fear of Abandonment: Underneath their narcissistic facade, individuals with narcissistic traits may experience deep-seated fears of rejection and abandonment. The thought of being alone or losing their partner might trigger intense anxiety and lead them to try to maintain the relationship.
Control and Manipulation: Narcissists often seek to maintain control over their partners. By staying in the relationship, they may believe they can manipulate and exert power over their partner, potentially using the infidelity as emotional leverage.
False Sense of Superiority: Some narcissists might perceive themselves as superior and believe that their partner's infidelity is a result of their inadequacy, which reinforces their belief in their own exceptionalism and may motivate them to stay and "fix" the relationship.
Perceived Challenge: The narcissistic personality may view the infidelity as a challenge to their dominance and may want to prove their superiority by "winning" their partner back and asserting their control over the situation.
External Appearances: Some narcissists are deeply concerned about how they are perceived by others. Leaving the relationship might be seen as a sign of failure or weakness, so they may choose to stay to maintain the appearance of a successful partnership.
It's important to remember that every individual is unique, and their reasons for staying in a relationship can vary widely. Additionally, if you suspect that your husband may have covert narcissistic traits, it's essential to handle the situation with care. If you are facing challenges in your relationship, seeking guidance from a qualified therapist or counselor could be beneficial for both you and your husband to address these complex issues and find healthier ways to move forward.