So Sweet (Goodbye, Nicotine)

You used to be so sweet But now you're just killing me I'm rolling up your Windblown street Trying to breathe You'll be the death of me That's not just hyperbole But I'm seeing past And over you To who I should be Do do do do do do do do You'll never leave me completely Na na na, na na na But you won't come back To defeat me Na na na, na na na I know I said we'd be Together forever Na na na, na na na But you are on your own I'm sure you'll find someone To keep you in the lungs You know when I hit rock bottom I'm still looking up at you So smoke 'em all While you got 'em 'Til the air is full of blue