We almost all feel some degree of possessiveness and jealousy in romantic relationships. After all, it’s at the heart of the phrase “be mine” we hear every Valentine’s Day — that concept of “belonging” to someone. Possessiveness is fundamentally a fear of loss. Possessive people worry that their partners will leave them.

Yes, certain relationship dynamics like jealousy or possessiveness can potentially affect sexual function. These emotions can create stress, anxiety, and insecurity, which may lead to difficulties in intimacy. Open communication and addressing these issues with a partner or a therapist can help improve the overall quality of a relationship and, in turn, sexual function.