The Joker is Harley Quinn's former lover. Harley's solo comics often explore her former association with the Joker through "flashbacks of their past exploits, present-day conflicts", or through Harley as she "laments his absence". Harley often refers to him as "Mistah J" and "Puddin'".
Harleen Frances Quinzel, also known as Harley Quinn (a pun on the word "harlequin"), first appeared in the Batman: The Animated Series episode "Joker's Favor", where she served as a humorous female sidekick to the Joker.
Actually, I consider Harley Quinn to be a reincarnation of Duela". It is later revealed that the Earth-3 hero the Jokester is her biological father and Three-Face, Evelyn Dent, is her mother.
SHE COULD BE JOKER'S DAUGHTER
There has been some speculation that Harley Quinn might actually be the Joker's daughter. However, it's very clear to major fans that she has never been related to the Clown Prince of Crime. The idea was brought up for a potential Batman movie. In it, Harley was set to be Joker's daughter.
The Joker does not reciprocate her love and is in fact incapable of romantic emotion as he sees people only as tools to further his own plans. Harley is in denial of this fact and prefers to view him as an antihero until she eventually has to come face-to-face with his complete disregard for her.
While it's the first time the Joker has been pregnant, it's not the first time he has had a child. In one comic, Injustice: Gods Among Us, Harley Quinn reveals she gave birth to the Joker's child, Lucy Quinzel, but gave them up for adoption.
In this case, what compels Harley to come up with and, from that moment onward, perpetually utilize the name "Puddin" is an honest expression of the mutual love between her and Jack Napier, someone she considers a separate person from the villainous Joker.
Lucy Quinzel is the daughter of the Joker and Harley Quinn and the niece of Delia Quinzel.
Joker Jr. is the son of Harley Quinn and the mass-murdering criminal The Joker.
Harley and Joker break up because Harley is sick of living in Joker's shadow. She was more intelligent than the Joker and often planned their major heists. However, Joker always took all the credit.
As he sets off to finally stop Batman once and for all—this time through legal means—he comes to terms with how terribly he treated Harley when he was out of his mind. In issue #2, Jack proposes to Harley, and she accepts.
While they were dating, one of the most frustrating things for Harley was Joker's obsession with Batman and his lifelong goal of playing and eventually killing him. Thus, back in the original, classic stories that they have together, Joker abused her the most when he didn't want Batman touched.
The most common interpretation of the character is that of a man who, while disguised as the criminal Red Hood, is pursued by Batman and falls into a vat of chemicals that bleaches his skin, colors his hair green and his lips red, and drives him insane.
In the film, Harleen Quinzel voluntary jumps into a vat of acid that turns her into Harley Quinn on her own accord simply because her love and obsession for the Joker trounced her own vision of self-worth simply because the Joker asked her if she “would die for him.”
In Joker, Thomas Wayne (Batman's father) and Penny Fleck (Joker's mother) are key characters. Penny claims that Thomas is actually Arthur's father.
Twin sisters Delia and Deidre Dennis were the grandchildren of Harleen Quinzel. They joined the Jokerz under the joint alias "Dee Dee" and later followed in their grandmother's footsteps as "hench-wenches" of the original Joker.
Barry Quinzel is a minor character who appeared posthumously in the episode "Bensonhurst". He was the son of Nick and Sharon Quinzel and the younger brother of Harley Quinn.
Dr Harleen Quinzel met the Joker when she was 21 years old. Harley Quinn is currently in her later 20's or early 30 depending on which comic you read. Harley Quinn was with the Joker for 7 years minimum or 14-year maximum in DC Comic canon.
Dr. Harleen Frances Quinzel, later known as Harley Quinn, is a fictional character in the DC Extended Universe (DCEU), based on the character of the same name created by Paul Dini and Bruce Timm as a comic relief henchwoman for the supervillain Joker in the DC Animated Universe (DCAU) animated series Batman: The ...
Some of them are endearing while others may be insulting. Harls is one of the most popular--it's a nickname that he gave to her from the beginning of their DC evolution. He has also referred to her with other endearing terms like Harley Girl, Doll Face, Pooh, Darlin' and more.
Harley Quinn season two ends with Harley and Ivy finally accepting their feelings for one another and pursuing a romantic relationship.
In the heat of the moment, Harley and Ivy share an intense kiss. Their romantic feelings for each other sneak up on them—exploring the messy emotions that come along with falling in love. Harley quickly accepts that she has feelings for her best friend—Ivy does not.
Harley Quinn and Poison Ivy are back together, proving themselves as the healthiest superhero couple to come out of Gotham City.