Ummm...I appreciate you taking your share of the blame in the failure of the marriage, but YOU don't want the divorce, for goodness sake. He filed because he's leaving you for another woman.
If I were your father, I'd want to know. So that way I could go and beat the living sh*t out of that bastard!!
Don't rob your father of his manhood. Let him stick a red-hot poker up your husband's a$$ while you mother scolds him.
