When you cheat on your partner, you are pretty much cutting all ties to them.
You are consciously dismissing their needs, feelings and worth and selfishly succumbing to temptation. Does that relinquish any rights you have to demand something from them? Yes, yes it does.
This guy doesn’t really give the best explanation of what it’s like to be cheated on, or the most pleasant, but I think this girl deserved every word.