You can make lemonade out of lemons. Why not shoot her a quick email saying something like:
"Thank you for sharing so openly last night. I can see that you have given a lot of consideration to how this has impacted me and I appreciate how difficult it can be to own up to any of that, particularly when you've been through so much due to my shortcomings. After we talked I realized you probably didn't feel very heard, so I wanted to reflect what I took away. What I heard you say was _________ and _________. Whatever else happens we will need to be able to communicate about S13, and I hope we can do better as coparents than we did as a couple."
Me:38 XW:38 T:11 years M:8 years Kids: S14, D11, D7 BD/Move out day: 6/17/14, D final Dec 15