If she wants to have a talk then you let her talk. But don't say anything back to her other than simple validating comments.
Here's an example:
"We need to talk, we need to get this divorce going ASAP, I can't take this anymore." "You sound frustrated, is that how you feel?" "Yes I'm very frustrated that you are not helping me with this divorce!" "I can tell you are frustrated, I am sorry you are struggling with this." "Good, so you will help me with the divorce?" "No, I do not want a divorce, but if you wish to pursue that I will not stand in your way." "How dare you blah blah blah!" "I know this is difficult for you."
The point is don't argue/ beg/ plead/ negotiate/ reason just remain neutral no matter how emotional she gets.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712