Congratulations Onguard, this seems like excellent news.
It does seem from what you're saying that your W is coming to her senses. If you haven't asked for transparency in a while then I think it's time that you start laying out your conditions for a potential R, should that be what you want.
These things may include total transparency, no more visits to the fitness studio (can't she find a new one, or maybe go with you?), maybe a NC letter if applicable.
From what I've read it seems you may be approaching piecing. I have no experience of that at all but from what I've read it would seem that it's natural for you to feel a flood of emotions as the dynamics of your sitch change. My guess is ultimately you want your W back so make sure you don't make rash decisions based on emotion.
BD - 30TH JAN 2015 S - 30TH JAN 2015 PA CONFIRMED - 16TH FEB 2015 (SINCE AT LEAST OCT 2014) CONTINUAL TALK OF D ME: 31 W: 28 T: 10yrs M: 4.5yrs D:5, S:6