I don't think Bond is being sarcastic I think he is truly worried for you. So am I. I follow your thread from time to time, and I really think you need to let this man go. You are losing yourself. Your son is hurting. What will help him the most right now is to see you pick up your life and move on. Please, if not for you, do it for your son.
You are better than this man, you truly are. But you are trapped in a position where you can't see that right now. You are allowing yourself to think that someone is better than you b/c he chose to be with that person rather than be with you. That is not about you, don't let it define you. I hurt for you when I read your thread. Your life can be so much happier than this!