walking on eggshells is no fun - when my husband was severely depressed, I lived with eggshells every day for at least 2 years. I feel for you
There is so much "advice" about taking care of yourself first, ignoring the eggshells and speaking your mind, socializing, exercising, blah blah blah but the fact is that when you live in an eggshelly house, all of those things seem useless once you step foot inside the door again.
I do think that a trip away for a few days might do you and maybe even him some good. Can you afford a spa weekend? Or at least a few days at the beach at a B&B?