Hey bro. It's a lot of smoke. Sounds like she's being defensive because she knows/understands her actions are not becoming of a W/mother. Here is an example, each time my W brought up "doing the divorce the hard way", I simply replied "OK". She would then back peddle and try to leverage everything she could against me. Include the kids on her "leverage list"!!! Called me every name in the book. She couldn't break me. Then, all of a sudden, she had the hots for me and wanted to be around me. Not saying this is going to happen for you but she MAY see you as a confident man again.
This is how I see it..... She realizes D doesn't scare you any more and that her threats have no effect. Now she's thrown for a loop. Your fighting back but doing it nicely. Her fog may be starting to break OR she's trying to manipulate you. Either way, you must act "as if". I don't care what she says/does, act "as if". Make sure you stick to PMA.
My W didn't want the kids often (like yours). Then, she realized I had no problems with them. Why? Maybe the grass isn't greener? Maybe she realizes the value of family? The truth is, "why" doesn't matter.
Steady the ship bro. I would probably lay off girlygirl69 for a little bit. Give it a week and see what W does.