Harley Quinn's self intro in the beginning, P2 of 3:
Finding love, it's not easy. So I threw myself into my work, became a psychiatrist. That's when I met him. Mr. J. My Joker. I fell hard. Like out of a plane without a parachute, right in your dumb fucking face kinda hard. I lost all sense of who I was. I only had eyes for Puddin'. We all know the saying, "Behind every successful man there's a badass broad." Well, that was me. I was the brains behind some of Mr. J's greatest stunts. Not that he let anyone know it. Puddin'? I guess all good things have to come to an end. So... we broke up.