... Indeed, other researchers have described compersion in terms independent of jealousy, as the feeling of joy one feels knowing that their partners are sharing joy and love with others (Ritchie & Barker, 2006), and suggest that individuals may experience compersion as an emotion, like the happiness one generally feels when their partner receives recognition at work, or accomplishes something important to them (Sheff, 2013). Research on compersion has been sparse so far but suggests that people in polyamorous relationships (compared to those in monogamous relationships) experience higher levels of compersion and lower levels of jealousy (Mogilski et al., 2019), and although individuals in polyamorous relationships do still report jealousy (Deri, 2015;Kohut, Balzarini, Lehmiller, Harman, & Holmes, 2016;Visser & McDonald, 2007), they report being able to navigate and manage their jealousy through communicating with their partners openly about their experience, and negotiating boundaries and agreements that help protect their relationship (e.g., Deri, 2015;McLean, 2004;Ritchie & Barker, 2006;Rubinsky, 2018;Visser & McDonald, 2007;Wolfe, 2003;Wosick-Correa, 2010), and in doing so, are able to capitalize on the positive aspects of their partner engaging in extradyadic relations. If that is the case, then perceiving someone to be romantically interested in one's partner may upset a person, please them, or invoke mixed emotions, and we may expect these reactions to be predicted by one's relationship orientation, with those who are polyamorous experiencing more positive responses, or compersion, in response to a partner's extradyadic relations, and less negative reactions, or jealousy, compared to people in monogamous relationships. ...