Compersion is an affective state commonly discussed in the context of consensually non-monogamous relationships. It is typically described as a positive emotional reaction to one’s partner’s enjoying time and/or intimacy with another person, sort of ‘the opposite of jealousy’. Recent years have seen an increased interest in this seemingly startling emotion. Part of what makes understanding compersion so difficult is the mononormative expectations of our culture. We suggest that a non-Western, in particular Buddhist, perspective might be more helpful to understand that love and/or intimacy need not be an affair between two people only. We approach compersion through a Buddhist lens based on the ‘four immeasurables’, i.e. non-egocentric states that Buddhists take to promote well-being, and their ‘near enemies’, i.e. states which are easily conflated with them, but egocentric and harmful. Our goal is not to formulate a definition of compersion, nor to raise a normative bar for anyone who feels compersion, but to describe important facets of it that stand out more clearly against a Buddhist background than they might otherwise do. Such an approach not only enriches our understanding of compersion but contributes to people’s flourishing in all kinds of relationships and shows that non-monogamous relationships might be compatible with some forms of Buddhist practice.