Of all the signs and wonders you have listed as having been taking place - the one that should capture your attention is your own reaction to this turn of events.
Understand, I am not discounting the "injustice" of it all. It has to boggle the mind and heart when a WAW stops walking and starts pondering. I wouldn't know. I was a MLC/WAW that stopped, pondered and then turned around. My husband had not entered into another relationship though. But even still, it was a while before I could translate verbally what was happening, what was changing, inside of me during the beginning of my own realizations. Hell 3 years post, I'm still translating it...
I told you your wife wouldn't have the answers and you pressed her anyway. I understand why and I'm not slamming you but you really have little to no understanding of this process. And that her lack of an appropriate response made you think that leaving the other woman wasn't such a good idea (after you had started thinking you would) should be cause for deep reflection on your part.
If you are the least bit sensitive to the Spirit, I hope that you will recognize what is most obvious here.
And that's that it ain't over until HE says it's over.