Sure, Joker and Harley have an extremely toxic relationship; You know, with all the killing and fighting and general unkindness to each other. But that doesn't mean they aren't cute every once and awhile. Even if it involves a hand grenade. Here to give you a snapshot into the "loving" relationship of the DCU's favorite couple is this officially licensed Joker and Harley Quinn My Heart Explodes women's fitted cotton t-shirt.