The fool again...

I guess I'm a glutton for punishment. I must have a big god damn sign on my forhead that says, "please, play me... I don't mind." Here's a few questions for those that know me, particularly for the females, but males you can answer too... What's wrong with me? What do i do wrong? This one hurts... bad. Maybe not so much because of what happened, but because I allowed it to happen, when I knew better in the first place. Why is it that the ones that seem so right, and make you feel so good, turn out to be the ones that hurt you the most. When do I win?... When will someone put as much into me as I do to them?