MTV reports that Twilight's Kellan Lutz and 90210's AnnaLynne McCord have officially split up because well... Kellan is a crummy boyfriend. Kellan has apparently been putting his Twilight celebrity status do good use and been hitting on other girls.The first big incident occured on New Years Eve when Kellan was rumored to have been kissing another girl at a party. She forgave him for that. But the breaking point occured when he didn't give AnnaLynne a birthday gift for her birthday. "He showed up at her house with flowers and took her to dinner, but that was it," the source said. "No gift."When Lutz tried to make amends by taking McCord on a vacation in Santa Monica to "get away," she declined to go, saying that the effort was too late. Reportedly, she decided to end things with the actor about a week ago.Lutz seemed to announce his single status in July, despite being seen with McCord, but the news was not widely reported. In an interview with New York's Daily News, he said, "I'm very busy. I'm a relationship guy, but I recently broke up with someone who I was really in love with. And if that didn't work, how could anything else right now?"I should probably feel sad about this break-up but I'm not. Kellan is single again, yay!