A bad day can be anything from total isolation and not seeing hide nor hair of him, to lashing out... snark, mean comments, blame game, what have you. He doesn't rage as much as he used to, in fact I'd say he never rages anymore, but I don't want to jinx it.
I've gotten way less stressed about it over time. Most of the time I just let it roll off my back. Of course I worry about him. He doesn't act like that if he is feeling well. But I think I've gotten to the point where I can accept that is just part of loving somebody with this particular set of symptoms. In fact, it makes me feel guilty as hell, but when he isolates I use it to do fun shit he never wants to do. I mean, if he doesn't want anything to do with me that day, I'm taking my kids to the amusement park and getting some coaster time in. I'm going shopping with my daughter or girlfriends. I'm going to see girly movies or getting my pedi on. I have my phone on me if he wants me.
There are some things that I still have a hard time with. A few random shitty comments when he's lashing out, meh, I can deal with it. When it is piled on in massive amounts it gets to me. Even if I know he is lashing out, having my intelligence questioned all day long or being told I'm ruining somebody's life over and over wears on me. I also don't handle his deep depressions or suicidal ideations well. I would rather him yell in my face than feel that worthless. It breaks my heart to see him feeling that horrible.