Husband cheats after 20 years of marriage with tons of prostitutes . Keep him or can him?

Asked by Evian (280) February 14th, 2010 from iPhone

Married 20 years, Romance (sex )non existant for a long time . I miss it. Relationship only so so. Discovered prostitute habit of his involving dozens of women. He brought them to our home when I was out of town for business trips. Am financially stable. Keep him or dump him? He would make divorce very, very messy.