"Tell your friend to stop wasting one or both of these women’s time, because it’s just wrong: We only get so much time in this life. Figure out what he wants, stick with it and let whoever he’s not interested in get on with her life."  ARE YOU KIDDING ME???  This guy's got two women, both of them apparently complicit in his duplicity.  Meanwhile, he's boinking both.  Take the guy out for a drink, and have a few laughs at his ladies' expense.  Sooner or later, both ladies will turn on him. Karma sucks.  But by then he will have perfected his technique and will have found two more gullible companions.