Jasmine, thanks for posting. When I first read your post, I thought you might be her! It is somewhat reassuring from your perspective that my W is doing these things to keep tabs on me. Maybe the door is not totally closed for her as she said before the S.
Maybe the S had to happen for real change to take place. If I had successfully talked her out of it, the relief of it may have lessened the motivation for change. Or perhaps remaining fears or resentments would have kept us too guarded to ask for what we both need.
We both know the answers to the rest of your questions.