I'm sorry things have started to grind a little. A good move to call her for more information first b/f taking any action. Nomo uses that L instinct well.
Although it may seem that you'll have negative feeling regarding your W from here on out, after the court stuff is settled & done my guess is you'll feel differently.
Just a suggestion FWIW, if you do offer your W child support, that's something that can always be altered later, whereas a divorce settlement cannot. It might take the heat out of it if you offer something, & as you said, you were giving her $700 month anyway. Perhaps take it out of that & you can always adjust it later. Maybe say you had been thinking about it & it makes sense to you right now, so it doesn't seem that you're caving to a threat.
I'd try to nip the start of what may turn into a nasty battle between you & W before it begins picking up steam.
I can sure understand how you would feel about her right now.
