I know, I have the same concerns. And recently, I've been experiencing a resurgence of my panic attacks and I am feeling sort of a depression coming on...
He is avoiding a discussion like the plague. I told him I want to sit down this weekend and talk to him, and that I hope he is appreciate of how difficult this will be. I am trying to be respectful of how much he hates (and ignores!!!) my email communications. So, I'm going to Face-to-face it and I have to figure out what I want to say, how to make it short and sweet, how to develop a plan to push back on him when he either tries to get me off track, tries to wrest control of the conversation, tries to minimize my feelings or if he gets angry and sulky (all very real possibilities).
I told him that if he didn't want to talk to me, that was fine...however, I wanted to talk to him and that I needed for him to listen to me.
Since then, he's been going out of his way to engage me somehow...wanting physical closeness, wanting to do stuff for me, wanting to talk to me. And I must be deeeeeeep in withdrawal, because I don't want any of that from him at the moment.