Gerri, I agree with Christine about talking to the Dr. Sometimes, meds to get you over the hump can be quite helpful.

There was a point with Dave where I wondered where my wonderful husband went and if he was going to return. I don't know where he went but he's back, thankfully. Believe me, during that time my frustrations and fears were through the roof. And the guy I would normally lean on was the one causing it.
If he won't talk to someone, maybe you could consider seeing someone. It certainly helps to vent.
Don't feel guilty about getting mad, this disease sucks all the way around...