The Marriage of Batman and Harley Quinn

In an alternate universe Harley Quinn realized how cruel and manipulative the Joker really is and never really cares about her, so she is reformed and instead choose to team up with Batman. Batman has treated Harley with kindness a lot more than the Joker, the two eventually fell in love and are aboout to get married as Bruce Wayne and Harleen Quinzel. but the villains of Gotham don't know it epecially the Joker.