I'm not an expert in this by any stretch but I get the feeling that you are being used as a safety net right now. She sounds lost and confused as opposed to "waking up".

I would break contact and continue on until she initiates contact in a serious manner, i.e. she wants to own and be responsible for her actions and understands more fully the root causes for her discontent.

Me- 47
W- 45
Married 22 years
Together 30 years
No Kids, 1 dog, 1 Cat
2005 - 2007 W in MLT
1/08 - Crisis hits
3/08 W drops Bomb and leaves in the middle of the night. Admits to PA
4/08 W files for divorce
8/08 Divorce final