According to research one of the things that makes a perfect couple is common goals and mutual admiration. What could be more descriptive than The Joker and Harley Quinn? They both share the common goal of bringing down the Bat, and each is infatuated with the other. Sure they're raving psychopaths, but that's beside the point. Two more of Tim Lydy's brilliant Forms of Gotham collection, and an inspiration to couples everywhere.