How do you prevent yourself from being that girl who only wants to hang out with her boyfriend?

Right now, he's all I want to hang out with, and all I really think about. I think it might be because I live alone, and not with roommates. I can't quite pinpoint it...anyone know how to get rid of this feeling, or change things? I love him, but I don't want him to become the center of my life. But I can't help feeling this way - I love him so much.