Well, I stopped the sleeping pills cold turkey after three months. It was hard to fall asleep at first and I still wake up at 3 or 4 in the morning thinking about the stupid A.
Having said all that, I now think that my WW would be making a mistake to leave me and she seems to finally realize that even if it's hard for her to admit it -- my story, she might tell you something different.
I reason myself to sleep when that happens. I tell myself I'm a good person and deserve good things. The 180, which took me three months before I was finally able to start pulling off, helped me detach.
Feeling that I can live a happy life with or without my wife helps me accept the stupid A and eventually get back to sleep. However much I hate the OM, I know my life will be better than his no matter what. He's a douchebag who invited destruction into his life, I'm not. We're also in the same industry. If we go ever go head-to-head on anything, I'll have a lot of rightous motivation to crush his ass. And I'll do that without ever doing anything that could land me in trouble. I don't need that and love my life (except for the A).