Come up with some slick simple responses that you keep repeating... but i think its best to just ignore her pursuit so she chases you.. the last thing you want is to give her the info she wants so she can feel GOOD about her behaviour... she feels GUILTY which is why she's taking temperature... let her SQUIRM for a while
You will have to decide what to talk to her about, but my advice is to NOT share or engage any conversation you DON"T want to be part of...
If she asks about living arrnagements after divorce etc ignore it... ignore her... she's not after that, she's after an emotional response from you.. make her work for it
If she says something like "why are you treating me like this?" just look at her for about 20 seconds like you are just dumbfounded at how obtuse she's being.
This is subtext QS, she KNOWS why you're upset, she wants to SEE IT so SHE FEELS better.. this is passive aggression at its best.. The best way to beat that is to NOT give her what she wants... the satisfaction of knowing she's pushing your buttons.
If you want to say something :
I don't want a divorce. I made a commitment to my marriage for better or worse and this is the worse... I am going to family therapy, I am being an adult and a husband...
Ball's in your court my dear...
I don't quite like that, but something along those lines.. it challenges her to find maturity in herself and respect for you.