3. Craig Schelske

Craig Schelske is the estranged husband of country singer Sara Evans. Their marriage was plagued with so many problems, and as per the singer’s reasons for filing divorce, Schelske dabbled in extra-marital affairs, was abusive, watched too much porn, and drank too much.

Via sheknows.com

Sara Evans alleged that her ex-husband had an affair with their nanny, Alison Clinton. She wasn’t able to provide solid evidence to prove her allegations although Clinton subjected herself to a polygraph test, which she passed. So, hmm…