Hoswald
With my W every time I fought the D, it just emboldened her and drove her further down the path. It wasn't until I started saying the following that things started changing:

"I understand you feel that this is what you must do, you know I wish things didn't have to be this way, but if you feel this is the best path for you then there is nothing I can do. I wish you the best of luck"

Then I gave her some quiet time to think. Then she would think of how life "REALLY" would be like, freak out, and start telling me how bad things would be.

At this point all I would say....

"I'm sorry to hear it will be hard, but don't worry you'll manage, your bright and smart, you can do it."

Then reality would really set in....

See my theory for WAW's is that the fantasy of running away is way more appealing than the actual truth. Let her push this as far as she wants, show her it is not what you want, but respect her wishes. By doing this she will have to realize that she has to do this, because she wants to do this for herself, not because she wants to run away from a bad version of you. (The bad version of you, that you are supposed to be getting rid of through DB, see how it works!)

In my opinion all WAW's are running away from a situation they think is hopeless, most likely they DONT want to get divorced, but feel there is no other choice. Fix yourself so that they no longer have a reason to run away from you, then give them time to re-evaluate the true reasons they are running away.

IF you are doing it right in my opinion your WAW will be faced with 2 choices:

1. Run away from a problem that is no longer there thanks to DB.

2. Run away from you and towards a life of bliss, happiness, and independence. (A life which is most likely a fairy tale, with no real basis in reality).

Give her time to realize that you are a better person, and give her time to realize that the grass is not always greener on the other side.

This WILL take time, and may even go as far as actually getting the D. She may also never turn back, but in my opinion this is the best you can do if you want at least a "chance" at saving this.