Thanks for the sanity check I guess and for all of your replies. I'm not going to engage in any ridiculous conversations about these accusations but I did start wondering if it was related to alcoholism or whether he's just completely insane (his brother, who is also an alcoholic is on permanent disability for, among other things, psychosis and some diagnosed paranoia-- not sure if it's schizphrenic paranoia or ???).
I'm finding it increasingly hard to have any contact at all with him even just about the girls (and I keep it as short as humanly possible) bc I am just irritated and fed up with everything about him.