Well, this song is about how he got his heart broken by a girl he thought care about him. Now, even though he is still hurt he wants them to work it out and he is basically begging her to stay throughout the entire song. He can't believe she left him, and that's why he keeps saying "I thought you'd always be mine." justin B. Is not my favorite artist. But if you don't like him, then don't. I don't hate him, but there are other artist that are more genuine like B. Cox, jd, eminem, lifehouse, and the dondria. Peace out!