Trusting, I am sorry that you are having to deal with this. I expect that I might, too.
As far as your D, yes, your X is not too healthy, but at the same time, I think there is some truth that just about ANY relationship with a parent is better than nothing. So that is how I try to approach.
Your X has made some progress w/your kids, and he is at least present so hopefully things will improve slowly.
The house should solve the problems between OW and your X that your X communicated to you, yessir. (rolleyes)
Again, maybe they don't hit bottom. They live bottom, day to day. Nowhere to go.
M: 16 years Bomb 4/07 OW 20s long gone Divorced 11/09 I remarried New Guy Cooperative r w/X regarding D