It could be - of course we already have proof that he is a loud mouth bigot, a drunk and adulterer. I’d say she’d have to do a lot to equal him in the low life department.
Women are capable of many things and some excel at being lowlifes. Perhaps she is worse than he is just more discreet. For example a stay at home worthless drunk as there are plenty of them depending on housekeepers.
We will never know for sure.