Mare, I think you are right, I think he is sick. I also think your idea of asking him to leave would probably be best for the both of you for now. It just isn't healthy. After all, you have confronted him over and over (I read your old posts) and it doesn't seem to phase him. Try something new.
Think of this way, if he does go be with the OW, she will have to deal with his sick ways. I truly think he may be a sex addict or something like that. When I say these things, I am not being a smart a-- I am being serious. That is why I think if you ask him to leave then maybe he will go get help, if not you sure don't want him to bring you down with him.
I hope this message doesn't sound cold because I can only imagine what you are going through.
