Is the saying once a cheater, always a cheater, true? Why do people cheat? Is it because they don’t want to be with their partner or are there other underlying reasons? My husband cheated on me before we were married, but since then he has been devoted to me … at least physically. The problem is that I see him looking at other girls even when I’m around, and although I know that is natural, it makes me wonder if he’d rather be with someone else. Every aspect of our marriage is great, but I just worry.