H seemed quite confused and torn last night... wanted to tell me all of OW's faults because H stated he actually really isn't sure... blah, blah, blah. I told him I can't listen to anything about her right now. Basically just trying to give H the message that I am not going to meeting his EN's to relieve his conscience or helping him figure out what to do about her right now.
EXCEPTIONAL. That's a perfect answer!
"I'm sorry, but it's not my job to make you feel better right now" is also a good one.
Make sure you EAT today, okay? We can talk more about exposure later. In the meantime, if H asks you how you're doing (and he probably will, frequently), just say something like "Considering what you've done to our family, surprisingly well. This is not what I would have chosen, but I will be okay" -- or some such. When you feel stronger, and want to get into it, you can use Robx's approach of "This is probably for the best, as I have decided that I really have no interest in staying in a marriage where someone treats me like crap."