Another hot blonde off the market! Heroes star Ali Larter and her boyfriend, Hayes MacArthur, got engaged over the weekend. "It's true," a rep for the actress told People.com. "They're thrilled." Ali had said in the past that she knew this dude was "the one" right off the bat and that she was "madly in love." She says her man "brought light to my life. I feel lucky every morning when I wake up and see him." Ah, love. Congrats!