Searching, mine is the same way. Would never have done half the stuff he's doing now. He's a completely different person. I don't even know if there's an OW, but a this point, I've decided to move on. I have too much to do, and my girls and I have to get on with our lives. Will I take him back if he gets through this and wants to come back? Short answer: Hell no. Too much damage, and too many bad years behind us.
I really want to have a drama-free life. Never really had that with him. Always had a reason to blame me for something, not take personal responsibility for his own crap, and got off on fighting. I could tell that he got a rush whenever he did something particularly nasty to me. Crazy-making was something that he turned into an art form. Don't see myself ever going back to that circus anymore. Not my circus, not my monkeys. And, as I've told him numerous times since this started: you are no longer my problem. Crazy abandonment issues, and never seemed comfortable in his own skin. Did his best to invalidate me at every chance he had.
The tit for tat got old, and so did me being the problem. Won't be there for that anymore, and I feel for my OD. She and MIL will get the brunt of it now. I'm assuming that there is an OW, she can have him. Once the fairy tail is over, she'll see that she didn't get a prince, but a toad. More power to her.
Working on me now. Loving the opportunity to get to do things for myself that I've never been able to do before. H was so damned needy it was exhausting. Had to be the center of attention, and God forbid anything didn't go his way. He's going to have to grow up for us to even be friends at this point. He'd also have to go through extensive therapy to even consider the remote, and I mean almost impossibility of coming back "home".
-You just can't make this s*it up.
-Not my circus, not my monkeys!