It didn't take long for Harley Quinn to become one of Batman's most mainstream villains. Ever since her very first appearance ever in the critically acclaimed Batman: The Animated Series 1992 episode, "The Joker's Favor", she was a fan favorite. Harley Quinn and Poison Ivy have one.
The latest issue of the Injustice 2 prequel comic confirms that Harley Quinn and Poison Ivy got married in the reality of the Injustice video games
It's also tremendously clear to me that Poison Ivy is the best thing that has ever happened to Harley Quinn, since she is the only character who