I agree with the others, she wants to twist you up again. Don’t take the bait.
She is immediately blaming you so what’s the point. She sees you aren’t sitting around mopey for her, and her misery wants company.
You probably should listen to what she wants to say regarding the kids. A phone call can work just fine.
Of course I think you’re detached enough to meet her face to face if you want. Face to face works both ways and she will see your boundaries and strengthen and you will see her changes from 7 months ago.
Sorry daughter’s grades are slipping. It’s not uncommon and could be for any number of reasons or factors. It’s good she is seeing an IC to talk through any issues about her Mom.
DnJ
Feelings are fleeting. Be better, not bitter. Love the person, forgive the sin.