"I thought I'd be married by now." So sniffles Kim Kardashian on the cover of People as she talks about being single and 30. But don't weep for the callipygian starlet: She feels "powerful" flying solo and focusing on her career. "There was at time in my life where all I wanted was a relationship," says the ex of Reggie Bush and Miles Austin, "and I thought that was the most important thing." She concedes that it's been an adjustment seeing little sister Khloe get married and big sis Kourtney become a mom. "Is it weird that I'm now the single one? It's definitely a change for me," acknowledges Kim. "I have always been the one in a relationship. I like that role, I want that best friend partnership."