You know I'm kind of like you. My wife and I sep. 1.5yrs ago and for the first year I was pursuing like he!!, but didn't realize it. One day she told me she was going to file for D, I was hoping she wouldn't but one day I got the paperwork in the mail. It was only an intention of changing the S into D. After that day I stopped pursuing and decided I needed to help myself. Since then things have gotten better, still not to good yet but getting closer.
I know my wife has had the D papers from her L for about 7-8 months but hasn't filed anything.
So I would say there is still a chance the one thing I don't think I would do is move back in unless your sure it's going to work or at least has a good chance. IMO that would be worse for the kids than telling them you just need some more time.
Me:40 W: 39 T: 17 years M: 15 years S-9 D-6 D final 11/10/2009
"We are all faced with a series of great opportunities brilliantly disguised as insoluble problems."