Why do people leave relationships?

I asked a group of people a simple question and wrote this using their answers

Someone better?

Cheating is a definite deal-breaker in any relationship. it doesn’t matter whether it’s a monogamous or a polygamous relationship cheating is a bitter pill to swallow in any situation. if you are in a relationship where your SO is cheating on you then your relationship has run its course. there shouldn’t be any second chances for a cheater, if they did it once, they’ll do it again. so NOPE…