OP Really sorry to hear she did not take this opportunity to demonstrate that "openness and mutual respect" she talked about. But if she doesn't show a MC any sign of wanting to work on the M, they won't usually waste time on it; and agree with the WAS that is probably is time to D.
Not to take free shots at her, but it doesn't sound like she knows long term what she wants from life, despite her note about "an active plan for the future" or "the challenging things going on and the need to change". Hindsight is me having my head up my - - - for thinking she wanted to work at anything, and not presuming her note to be total alien speak. She's good.
Seems the extent of her plans for the future are litigate her employer and punish you - $$$$$.
Focus on yourself, NC looks like a good place to be. You aren't new to this, she just slipped a big old curve ball right over the plate. Back to your basics. If contact happens, agree to nothing, even if you smile and validate that you "hear what she is saying" or "understand her concerns". Agree to nothing you don't actively agree with. Think Potato. Makes as much sense as trying to reason with her.
But this can really eat you up from the inside out so please focus on taking care of yourself. See your IC as needed to stay grounded, and work on you. Don't let anyone take You away from you.
