LO, it is not too broken. He is still in the fog. He may think it is too broken to fix, but you do not have to think this way. You are the strong one. Don't give up!!! It is just a step back. It will move a step forward.
You cannot control what he thinks now. Only what you can do. Detach, detach. No talk of R, definitely no talk about OW (always cause a REACTION!!!!). Treat him like a great roommate, since he is in the guest room. Say hi, bye, how are you, just be in general friendly. But do your own thing, go out with friends, have activities with DD (without him unless he asks to go but also plan a couple "mother/daughter" things so you can decline). He wants to see how great a life (family or not) you are having. At some point, though, you may want to ask him to move out for a few days/weeks just to give you some space (do this when you are all "LOVELY OLIVE" so while he is gone, he will have the great memory wtih you brewing). Many of these H needs to hit bottom before they will truly commit. And part of it is moving out and see life w/o you. It is so hard, esp. if you have to kick him out. But may as well do it now than after you sell the house.
Meanwhile, take care of yourself, your DD, and your work. Just ignore him for a while if that's all you can do by not thinking about this. I am guessing in a few days, he will act better and you will. It's always a roller coaster. TAKE CARE. HUGS!!!!!
