I'd like to lead a small group of the same sort again in the future, and I am trying to figure how to respond to people like the woman in my group (and even what to do if she shows up to any new group I start). She was just difficult. I heard her say some pretty nasty things about her own husband, as well.

I have been involved w/ other groups where someone else was the leader, and that leader put up with some pretty nasty crap. It looks to me like he just decided to lead the group as best he could, and dealt with the crap as best he could. I just don't need the headache, and I have a pretty low tolerance for crap of the sort she was dishing out.