What is ethical non-monogamy or consensual non-monogamy, and what is not ethical non-monogamy? Ethical non-monogamy is when a couple mutually decides to add other lovers or romantic or sexual partners to their existing relationship. I want to be clear: ethical non-monogamy is NOT having an affair or one-night stand(s) without having your partner's consent and support IN ADVANCE. Since the author of the article below explores ethical non-monogamy, I will primarily focus on what it is not. Ethical Non-Monogamy (ENM) Is Not: Being attracted to someone else and pressuring or manipulating your partner into you being with someone else for your ...