Brokenpromises (amazing how we all feel broken by their actions and they can sleep at night no problem) I feel exactly the same.
I actually don't know which way to turn, I don't want to make a rash decision while I am still emotional, I want to call it quits when I feel that the anger, pain and hurt have gone. When I look at him and feel no love left and look at the situation with realistic expectations and realise there's nothing left. Does it sound realistic? Is it possible to achieve that stage?
I had my counselling last night and we talked about the change in behaviour. Before Christmas my H was all in, crying, being upset, making (empty) promises of how he'll fix it etc. She told me that is sounds like he suddenly realised the magnitude of what he's done and he now entered a stage where he believes this isn't fixable therefore he's detaching.
She said we are in a vicious circle, I don't feel like I can move on because of his lack of actions and feeling insecure because of it and angry which triggers my H to detach which then triggers more insecurity and anger in me.
So she asked me to be the adult (once again) and reach out and pull him out of his rabbit whole, remind him of our happy memories and why the marriage is worth saving, explain to him that if we divorce my pain will not go away and similarly, his guilt and shame will not disappear. When seeing the kids he'll always feel guilty for destroying their world and not doing much to save it. He'll have to carry the weight for the rest of his life from this so detaching currently will help him in the short term but in the long term he will not feel better about it.
So I have been the adult (again) last night and told him all this. He said it is the most useful thing he's heard in the last four months and he sees now realising that is what's going on with him. He feels overwhelmed by all of it.
Anyway I asked my IC how will I deal with the resentment of me being the adult and putting in the effort and she told me we'll deal with it later on, I should not think of the future now, and if it helps me understand that I am doing this for my kids. Ultimately I will be able to look back in a few years' time and be able to say I've done all I could while if he doesn't start putting in the effort he won't. And that by then my kids will be more prepared if it gets to divorce as they will see the atmosphere changing in the family environment while now they won't know what hit them as we had a happy family all this time so it would come as a shock to them.
I don't know if what I have written helps anybody but that's where I am at (today).