Oh ive had somone who I really liked, while they didn't feel the same way, but we were still really good friends. Once I got a girlfriend, it all changed. You just put all your attention on your boyfriend/girlfriend and your feelings start to die down a little for your friend. Try getting another boyfriend, I'm sure you'll have no problem at all, but who knows, he might get jealous once you do and start paying attention to you a little more like you'd like him to.