Compersion

Compersion (noun) – The state of being happy for another person’s happiness. Often used to describe being happy at seeing one’s romantic partner experiencing happiness with other partners.

Example

Chris and Dotty are romantic partners. Dotty is also romantically involved with Stan. Chris feels compersion when he sees how happy Dotty is with Stan.

Further Reading

Don’t Ask Don’t Tell

A relationship style, in which the participants agree to non-monogamy, but do not want to know the details, or perhaps even the existence of, their partner’s other romantic or sexual relationships.

Example

Bill and Ted are married and have a don’t ask don’t tell relationship. Ted doesn’t know that Bill is also dating Rufus. This doesn’t violate their don’t ask don’t tell relationship agreement.

Monogamy

A relationship style in which a person shares sex and/or romantic love with one other person. Most commonly, monogamy is practiced by couples that are exclusively sharing sex and romantic love with each other. There are relationships in which one partner practices monogamy, while their partner practices some form of non-monogamy.