Peace, what a rare treat to see a post from you about you, but I'm sorry for the circumstances.
I heard from the 1st OW twice. Both times under the guise of apologizing for blowing up my life. Both times very clear that she was: 1) trying to make trouble with him; and 2) trying in some way to distance herself from the wrongs she committed by portraying herself the victim. Seems similar to what yours is up to. Sad in any case.
You are old hat. You don't need us to tell you what to do. But a nice reminder for those who have not seen for themselves or have problems accepting that these people don't leave for a better life and it is certainly not all wine and roses.