Having been in your shoes before, I think you move on to a new man. Once a cheater, most likely always a cheater. Maybe not right now but he will most likely do it again at some point, in some form. I couldn't get it off my mind either, and at the end of the day I think a girl really has to listen to her gut instinct. If you think he cheating on you again, he probably is. Listen to your gut. At the end of the day, life is too short and there are too many men, and you should be with someone where you don't have to think about this AT ALL... EVER.