I didn't know this was separation 2, or that there was such a history of issues. (Sorry- I must have glossed over that).
It sounds to me like you're definitely resentful, maybe a tad angry. Let yourself feel it! You're entitled to feel however you feel. It seems your stance changes often, though.
My IC told me I absolutely MUST tell my H at some point how his behavior is impacting other peoples lives and how it makes me feel. The kicker is, I can't do it until his reaction to my statement makes no difference. As far as I've come, I'm definitely not there yet- but I get closer every day!
Same would go for you- if you're ready to move on, do it! But it seems you're not quite there yet because you still are emotionally attached to her behavior- just today you had anxiety. You'll get there soon enough. Have you been going to IC? Not DB coaching- I think everyone should be required to go to IC. Lol you need to figure out YOU outside of your M.
Just some thoughts...
Me: 39 H: 45 Second marriage for both H left 12/2013 M:4 T:5.5