For the 149th episode of Private Parts Unknown, host Courtney Kocak speaks to Ashley Madison's Communications Director, Isabella Mise, who coauthored "The Good Wife Study" on female infidelity for the final installation in our three-part series on why women cheat. For part one, we heard from an Ashley Madison member going by the alias of "Nikki" to kick off the series. Part two was a conversation with Ashley Madison's Chief Strategy Officer, Paul Keable. (This series also featured former co-host Sofiya Alexandra.) You're gonna want to check your presumptions at the door for this one!