Former "Gilmore Girl" Alexis Bledel and "Mad Men" star Vincent Kartheiser are engaged. Bledel's publicist, Meghan Prophet, confirms the news, which was first reported by Us Weekly on March 20, 2013. She says the couple have been dating for about a year. The 33-year-old Kartheiser plays ad man Pete Campbell on the hit AMC network drama, where, last season, Pete had an extramarital affair with the wife of a commuting friend. She was played by Bledel in a guest-starring role.