ABSTRACT The purpose of the present study was to examine associations between heterosexual consensually non-monogamous (CNM) and monogamous relationships and variables relating to relationship functioning and individual well-being. Participants (N = 555) were solicited online and asked to rate a number of items regarding their type of relationship, satisfaction, commitment, trust, conflict resolution style, and well-being. As compared to participants in monogamous relationships, people who participated in CNM reported more satisfaction, commitment, intimacy, passion, and love. Additionally, participants in CNM favoured positive problem-solving with their partners, while monogamous participants preferred withdrawal tactics. Lastly, CNM participants also reported higher psychological well-being. Collectively, the results support past findings of overall health and functionality of CNM relationships, which deviates from the mononormative assumptions of our society.