Consensual Non Monogamy (CNM) or Ethical Non-Monogamy (ENM) is an umbrella term the different types of non monogamous relationships that exist. Every individual's CNM is different and is based on the communication, understanding and explicitly agreeing to the set rules in their relationships. Some of the terms in CNM are polyamory, swinging, open relationships, monogam-ish, solo-poly, among others.
Sources:
https://www.mindbodygreen.com/articles/ethical-non-monogamy-guide
Cheating also known as infidelity and adultery is an act of being unfaithful with your partner. It is a breach of trust that an individual may have with their partner/s . Cheating is not restricted to
Polyamory is a type of relationship where an individual has more than one intimate partner at the same time. In this case, all the people in the relationship are transparent about their partners. Peop
Monogamy or monogamous relationships are when two individual are in an exclusive relationship with each other. This relationship can be both emotional and sexual in nature. Sources: https://www.merria