You come around  You're feeling down  She left you on your own  Without a sound  Your eyes they lead me  Into the danger zone    I know  I do  Just what you're up to    I know you by heart  And I know what you'll do to me  I know you by heart  And you know that it's killing me  To see you now    You come and go  Don't wanna know  What's really inside of me    The way I feel  Is no big deal  To you - but it is to me    I gave  To you  Everything I had    I know you by heart  And I know what you'll do to me  I know you by heart  And you know that it's killing me  To see you now    There ain't no future - in yesterday  I should just turn, and run away  But when you look at me that way  It makes me wanna let you stay  What can I say?    I know you by heart  And I know what you'll do to me  I know who you are  And you know that it's killing me  To see you now - ohoh ahah  I know you by heart  And I know what you'll do to me  It's killing me - ohoh  I know you by heart  I know you by heart  I know you by heart  I know you by heart