I'm sorry the situation is escalating when you could really use a break from it all.
I don't think the WAS realizes how profound the effect on others in the family goes. I also had the dad very ill w/C & the mother who took it all in to the point where she started talking about taking him out ;-)
I bet she does calm down after she gets most of the shock out of her system.
I feel kinda sorry for your H too, he has no idea what he's unleashed until he's tangled with a Momma Bear.