I still think W believes that everything will be fab if/when you're D because you still support her so much, both financially and emotionally. I know some people say be friends and just wait it out, but I think she needs to see what D would really look like. How friendly will you be then? I know you still need to coparent but are you willing to go along with her plan of being best buds post-D? I think if you continue to pull back she'll see that it's not going to be the wonderful outcome she envisions.
If you love somebody, set them free. http://tinyurl.com/2empx2g