Happy National Proposal Day, Rory Gilmore! Gilmore Girls star Alexis Bledel just announced that she and Mad Men's Vincent Kartheiser are engaged. The couple revealed that they were dating last summer—around the time Bledel guest-starred as Kartheiser's mistress on Mad Men—and have been together ever since; they even attended the wedding of Bledel's Sisterhood of the Traveling Pants co-star, Amber Tamblyn, together last fall. Congratulations!
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