You Think

You think that you know me, you don't. You think that you want me, you won't. You think you understand me, you don't. You think it don't matter, it does. You think that you see me, you don't. You think that you hear me, you can't. You think you won't leave me, you'll leave. I say it ain't easy, believe. Just say goodbye, 'fore you leave. But that makes it hard, so you won't. I'll say goodbye, 'fore you do. No it's not me, it's just you.