"20 years past, she may as well boast about her conquests and be cruel. I honestly feel the ***** is trying to pull off a classic novel out of her immoral life. "

This is very telling. There is a whole lot going on here that needs to be sorted out in therapy.

Believe me, those guys who cheated with her are scared of their wives finding out and/or her jealous husband's rage. If you decide (after calming down) you want to tell their wives, fine. But don't do anything to them physically. It'll only hurt you more.