Your W said this: I'm not going to do this any longer Lefty unless you want to discuss our divorce please don't contact me. I feel it is manipulative and can't go on any longer.
You can validate by saying,
"W, I can understand how you would look at it this way. I am sorry that you feel this way. I'm coming from a place where we do have a shared history and still care about you as a person like a friend. I just cannot just shut that "caring" feeling like a switch. You know that I do not want a divorce. I am willing to work with you to make the divorce happen...please send me the paperwork."
See? This conveys to W that you still care and yet appear to cooperative to giver her what she wants. Resistance brings on more tension. Remove the resistance and things will progress much more smoothly between the two of you.