Hang in there. Continue to do what is working and do not do what is not working. Yeah, it sounds simple.
Here are my observations from people who have successfully busted divorces:
1. Minimal relationship talk. You will know when the time is right to make your move.
2. Time - it really takes a long time for your spouse to come out of the fog and they will only do it when they are ready. It's definitely months +, not weeks or days.
3. No pressure - The more you push the more they run.
4. GAL - Absolutely critical!!! The minute you "move on," they come back -- if they are ready.
5. Space - Lots and lots of space. The further the better.
6. Be a good day - your kids need you more than every.
7. Talk to your friends/family/DB boards about your sitch, but not your wife. She is no longer there for you. It's hard to accept, but it is a fact.
8. Your wife is now "posessed" and only she can kill the demon inside of her.