Hey SS- I liked that quote you posted. Of course, it took me a few minutes to understand it, but it was relevant.
I don't know what to tell you. I know how anxiety producing the thought of a conversation can be. I would tell you to try your best not to react immediately to whatever it is he says. I forget, you guys only separated when you moved out, right? Maybe this time apart will do you some good. I do believe it helped my M somewhat.
Try to not push your agenda onto him. Yes, its unfair, but i don't think it will get you anywhere. Just listen to what he has to say. Don't fight him about how he feels. Just allow him to feel it.
Here's a question: Could he be pissed off that you moved out while he was away?
Anyway, try to relax and take a deep breath (that's what you told me, right ). Like you said, its a roller coaster...you may be down now, but it can't stay that way forever.