I guess it's best to distance yourself so it doesn't affect your mood.
Maybe go to the gym or for a walk when he gets home and he's in one of those moods, or go take a long bubble bath, read a book in a different rm. Anything to get you away from the negativity. It can really bring us down. I know when my H is in one of his moods I can feel my heart begin to race, and I feel so anxious and nervous. Lately I have just been getting out of the rm. I'll put my headphones on or watch a DVD on the portable DVD player, b/c it's so personal. Sometimes he asks what I'm watching (although he knows my friend lent me an entire season of a show I like) then he'll squeeze in to watch it. On saturday he asked if I can turn it off and watch a movie with him. I just don't have the energy anymore to feed into his negative moods when he is in one. I think you should begin to just get away from them too. That's just IMO.
M:28 H:30 DD-9| DD-7| Baby- Due 11/10 T-14 | M-8
10/08- Bomb 4/09- Failed attempt at Marriage Fitness Program 3/10- WH moved out. 7/10- Informed me he's filing in Aug