Ah, Sleeper, I feel in a similar boat, although I think your W has gradually come to have a better view of you than H has had of me, and you have seen more signs of hope and progress than I have.
You do need to start acting as if you are divorced. But you can make it friendly if possible.
Would you just walk in to a friend's house? Do not just go into her place again. If I were you, I'd turn the key over and simply say "I don't want to invade your privacy and I don't want to get between you and OM."
That should be a 180.
I also think about dating. I am realizing I have a very shaky sense of self now, and I want to come out of it.
M: 16 years Bomb 4/07 OW 20s long gone Divorced 11/09 I remarried New Guy Cooperative r w/X regarding D