You are truly doing an amazing job. I am in awe of your patience and maturity. You seem like a really interesting and capable person too. No wonder W is being drawn back in...you are fighting for all the things that are good and right and somewhere in her foggy mind, she is starting to recognize that.
I agree with HP that she needs to see that you really 'get' her and the contributions you made to the state of your marriage, and there will be a right time for that conversation. Right now, keep drawing her back in.