"I am disappointing myself a lot because I feel like I am somehow sabotaging it. He's opening up more and I'm kind of.. I dunno.. irrationally snappy or bitchy or something. I hate it!! I say stuff and then kick myself for hours after. GRRR (at myself). I do think I over-react to nearly everything right now, though."
Yes, well, that is because you aren't expressing what you need to express, so you ARE snappy and bitchy.
"H, I have a lot of feelings to share, and because I'm not, I've been snappy and bitchy. It is probably better if I just talk to you about them. I am so happy and hopeful right now, it is wonderful. Is it OK if I unload some of the old feelings so they don't get in the way?"