Sorry to see things haven't improved. I agree that your WW seems to be using you for emotional support which is eating you up. I think a boundary is in line also. You've got so much going for you right now, don't let the sitch hold you back. For me, I feel like I was on a "pause" for the last 9 months waiting for my WW to change her mind. I realized (quite suddenly) that I needed to be looking out for myself and not use my sitch as a crutch from living my life the way I want to. It's taking a while, but I'm much more accepting of me being where I am and I am actually okay either way it goes. However, at this point I can see there's no saving my M, it would have to be a complete start from scratch. With WW avoiding me at all costs, it's would be a long, long time.
In saying this, be easy on yourself. I see that you are blaming WW's indecision on your past interactions with her. That may be a small part, but WW decisions are based on herself and not you. I can see that in the indecisiveness of all parts of her life, not just your M. Be easy on yourself, Tim.
M:36 W:37 T: 15 M:11 S6 D5 BD: 8/10/14 IDLY: 8/12/14 S: 8/13/14 (she left, I stayed w/ kids) D Mentioned: 10/15/14 Confronted about OM: 10/15/14 EA: ~4/13 PA: ~10/13 She filed: 8/15 (not final)