It takes a while before you learn that you're making a fool of youself. If you listen too much to what your heart says, then I'm sorry my friend but you've just been played by the strings of fate... A lesson learned, though harsh, is still a lesson to be kept in the files of your mind. Using your mind helps. And prevents your heart from breaking and thus giving you the opportunity to think things through.
It doesn't mean that you should totally disregard the whispers of your emotion, just remember that you have a brain to lighten the load on your chest... Rock n' roll! \m/