Girl, you don’t know what you’ve done.   You don’t know what you’ve done.   You don’t know what you’ve done.   You don’t know what you’ve done…      I cant believe it took so long   To realize we were so wrong   And now that you’re gone   I know where, I know where I belong      Fifteen! What a long time to be with you   If I only knew the things you’d do…   GIRL YOU DON’T KNOW WHAT YOU’VE DONE!   And I’m glad we’re done      I cant believe it took so long   To realize we were so wrong   And now that you’re gone   I know where, I know where I belong      In case you haven’t noticed, girl, I’ve moved on   And one day you’ll see all that you lost in me   AND I DON’T REGRET A THING      I cant believe it took so long   To realize we were so wrong   And now that you’re gone   I know where, I know where I belong