Women :Don't let a girlfriend get in the way of you finding a husband

Men: Rings don't plug holes

The general population doesn't have a duty to respect a relationship(exception being close friends or family). They have a duty to be rational actors. If your partner becoming their partner is in their best interests, they should pursue that. It's not their fault, your partner is the only one in the wrong. Don't shift the blame on the other person.

There's no such thing as a home wrecker. You can't wreck a home if there isn't already a Crack in the foundation.