I have my own set of MI that I deal with(making my situation unique and I suppose only a little bit of a relation to your own situation..), and on top of that my gf has gone AWOL in her anxiety. It exploded out of no where about a month back and now every day, every night, the slightest thing sends her off into a full blown attack. It's really horrible to watch and be around. I understand it isn't her fault, but it's also really really difficult for the people on the outside to deal with. Especially if we don't exactly understand what's going on, or why.
For me when I don't have a good enough explanation I can accept, I get angry. I try not to, and it sometimes comes across in my behavior towards her. But when it's night after night, where we're getting less than 2 hours of sleep and she's crying loudly enough for the neighbors to hear, it gets old really fast. Especially when it's without an explanation and she refuses to find help for herself.
For me personally, living with someone who has high anxiety is a huge toll. I have no intention of leaving her or allowing her to be alone during these low times. Just because your bf might have imploded and taken his bottled frustration out on you doesn't exactly make him a lousy person, or mean he loves you any less. It just might be really overwhelming for him, as it is for me. It's not an easy thing for anybody involved to go through. Does he get to open up or talk about his feelings about any of this with you at all? As much as you want him to see how things are in your shoes, you'll need to be in his as well to make it work. Understand that this is probably stressful for him, and he needs to keep his own mental and emotional health in check too. He might need to talk to someone as well.
Focus on taking care of yourself, get the help you need, get the job you want, find happiness, and things will settle into place. I don't think your bf intentionally lashed out at you, and this is something you'll both need to sit down and talk about rationally without it blowing up in either of your faces, at some point. Take your time with it. There's no rush to fix or work on everything all at once. I think the best thing you can do is face any fears you're experiencing. Working through them and beating them will ultimately help your anxiety lesson. You just have to give yourself that extra push. It's hard, but not impossible!
My gf will get there one day, and you will too. Baby steps before leaps.