I don't understand cheating; I've never felt the urge to in any of my relationships. if I did, I don't think I'd be able to live with the guilt. I know it's a common phenomenon, but why don't people just leave their partner if they have eyes for someone else?

Is it about wanting more than one partner, or did it just mistakenly happen when you got swept up at the moment? This is no judgement here btw I don't believe all cheaters are necessarily bad people and there are levels to it. I just want some insight into what motivates it.