Alexis Bledel's rep confirmed to Us Weekly that the actress is engaged to her Mad Men co-star Vincent Kartheiser. The duo met when the Argentinian former Gilmore Girls star played the mentally unstable mistress to Vincent’s character Pete. But their ill-fated on-screen romance couldn't be more different from their off screen relationship A pal tells US Weekly of the pair, who’s been together for over a year, that they couldn't be happier! Another source shared more details with the mag, saying that Vincent proposed a few weeks ago. She's been wearing her ring and it's huge!