...the start of something: papers?

[SH_]

I would still clear of any talk with W at the moment
If she is there, just say, "I respect your decision. I don't think divorce is the solution. I will can continue to work in myself and I don't want to discuss this right now."
If she pushes just ask her to respect your wishes.
If she continues to push then do your very best to just walk away
It's going to be hard
But you know your emotions are at a volcanic level and nothing good will come from having a talk with her right now

Heed this advice it is very good.
Do not mix emotions with divorce proceedings. View it as business and taking care of the family. It is much easier said than done I know, but the moment I got a hold of myself as that train started rolling, I felt more in control than when I let the emotions and words in the paperwork and even my first meeting with my L get to me.
That first meeting with my L was so gross, but after I removed the emotion it has not been bad, cept the bill when it comes in, but that's a whole other story.

Hang in there brother. It sux, but you will survive it. Keep a level head.