Everything you're not

I used to sing to your twisted symphony
the words that had me trapped inside of misery
but now I know the reason why I couldn't breath

Cause all I want is everything you're not
so go ahead, slam that door cause you can't shut me out
no I don't,don't care what you say
Cause All I really, All I really want
is Everything you're not
                                    
                                         Demi Lovato