I used to get angry, too, and yell at my wife. I got help, and the help helped. I do not yell at her any more (I never did yell at her a lot, anyway, but sometimes I just couldn't handle the denigration and exploded verbally). Most of the time, esp. when she is manic, I come away from interactions with her feeling dazed and confused. She used to keep me up for hours talking/complaining about something or other, but the topic of the conversation jumped from one thing to another, from one time to another. I also never understood how one person could be the best person in the world one day, and the worse person in the world the other day. Sometimes that person was me. I would be "great" one week and "terrible" the next week.