What should I do.

okay, this is how it goes. I really like him, He really likes me AND ANOTHER GIRL. One day hes all “sidney, I like you more=)” & the next day he’ll be all “I like this girl more!” >=( I kinda dont like her, because she took my ex-bestfriend away, but I dont care about thatt . It pisses me off that he constantly changes his mind. We hug when we see each other in the halls. He says he barely see’s her, so I dont care. he says hes super shy around me. And he is like never. I dont think she likes him. He said because Im different? I hate how he is constantly telling me im so pretty, hot, sexy etc, And how he wants to go back out. Then he talks about the girl in his facebook/ myspace status And juss stuff about her. I understand that when you like someone you cant help it. Because I’ve done that to him. I juss dont wanna keep waiting..but at the same time I do, because I really like him. I dunnoo what to do ?? advice? xx