You're my methadone  My Nutra Sweet  My false sense of satisfaction    You're my Gucci bag  Bought on the street  My own cheap imitation    And I know that I'm just using you  For my own contentment  And I know that I'm just leading you on  What's wrong with that?     You're my silicone  My plexiglass  My close approximation    You're my iron lung  My Jarvik heart  It's no big revelation    And I know that I'm just using you  For my own contentment  And I know that I'm just leading you on  What's wrong with that?    And I know  That I should let you go  I shouldn't do to you  What's been done to me  But if I can't   Have what I want  At least I know  I can take what I need    And I know that I'm just using you  For my own contentment  And I know that I'm just leading you on  What's wrong with that?     And I know that I'm just using you  I'm just doing what you would do  If I ever gave you the chance to   What's wrong with that?