A hugely complicating factor is the clinical depression issue. How to separate her depression from any rational decisions she may be making is virtually impossible. What to believe? What to hold on to?
Yes, that is tough.
It seems like right now, your W is trying to get tons and tons of space. Once the newness wears off, it's just going to be the same old, same old for her. Then she move the next change or start moving back toward you - you just don't know.
You need to detach, work on your PMA, and GAL like crazy. Then, GAL some more. Seriously, it will make it easier to detach.
Then, GAL some more. Seriously, it will make it easier to detach.