Something you can do, as you slowly make progress towards turning things around:

Take a 3x5 card and start making a list of notable positive goalposts in this process. Things like asking if he can come back home again (even if that's gotten derailed temporarily) can be good things to meditate on at times like this.

And did you get your prescription filled??

Me: 44, Wife: 39
M: 17 years T: 20 years
Bomb on 08/25/09
1/13/10: MC started
1/28/10, 2/8/10: More bombs
8/28/10: Wife moved out
No talk of D, no movement

"Every day is another chance to get it right."