Then she responded That’s fine. I know we didn’t want to. But that was before you stopped all communication.
Absolutely textbook WS stuff. Wants to be able to blame her decision to lawyer up on your actions. So predictable.
Based on that comment and her wanting to control her guilt, I’m VERY sure she has already lawyered up - so you need to do the same, at least get a first consult.
Don’t respond to provocative comments like that about communication, she wants you to take the bait.
And you know, you don’t have to wait for her to send through what she wants before responding. Often there can be advantages in making a claim first.
I’d see a lawyer ASAP (like next day or two), get a rough recommendation on what you could reasonably expect, and then move it in your favour about 5-10% and pitch it at her. Personally I wouldn’t wait for her to make the first move. I’d say “I want X%, you get Y%, it’s what will get ordered anyway - if you agree now we can rip off the bandage and avoid tens of thousands of lawyers. Please let me know in seven days.”