I finally was able to emotionally handle reading some other's posts. I have been in survival mode since my husband moved out 7 weeks ago. Sage, your H sounds a lot like mine. The taking everything personally, attacking you verbally, wanting his EA/PA (in my case it is a friend he claims he is just "friends" with but they get along oh so well) yet also wanting to be good friends with you.
I had a milestone birthday 3 weeks after he moved out and WAH wanted to participate in all the birthday things with me. I was astounded and even though I really wanted to say yes, I told him heck no. It was really hard as it was the first birthday in 16 years I have spent without him, but I am glad I stood my ground. I hope you got to enjoy your day and I'm sorry you had to spend it in the middle of all this mess. Hang in there.