It was a woman and I honestly think she believes that there isn't a man alive who doesn't cheat.
OK, then tell her this: That the only reason the cynic believes that "everyone does it" is because the cynic does it, and cannot bear to live with the idea that other people may not be as degenerate as
she.
(Or as degenerate as the lousy guy she was stupid enough to pick out over the objections of her mother.)
:oD