Pamela Isley (Poison Ivy): Poison Ivy is a villain who often relies on seduction and the manipulation of pheromones to drive men around her to obey. This is no different with Batman, who initially confused the lust and desire caused by Ivy's methods for love. Ivy has a somewhat love/hate relationship with Batman; on some occasions she claims to love him and desires his affection, while on others she is more than willing to kill him. Bruce and Pamela had a brief but genuine romantic relationship after he helped to cure her of her condition, but this came to an end when Pamela seemingly died in an attempt to turn herself back into Poison Ivy.
Zatanna Zatara: The first occasion in which Zatanna was portrayed as a strong romantic interest of Bruce Wayne was in Batman: The Animated Series, where the two of them met in their youth and were interested in each other, but Bruce gave priority to the pursue of his training to become Batman. As adults they met again and realized they cared for each other, but nothing came out of it. This history was later introduced to the comics. Batman and Zatanna had a major falling out after Bruce found out Zatanna had mindwiped him after he walked in on her mindwiping Doctor Light at the Justice League's instruction. Batman made it clear that after these incidents, he no longer trusted Zatanna. However, the two eventually resolved their issues and became close friends once again.
While most of Batman's romantic relationships tend to be short in duration, Catwoman has been his most enduring romance throughout the years. The attraction between Batman and Catwoman, whose real name is Selina Kyle, is present in nearly every version and medium in which the characters appear. Although Catwoman is typically portrayed as a villain, Batman and Catwoman have worked together in achieving common goals and are usually depicted as having a romantic connection.
Batman once again becomes a member of the Justice League during Grant Morrison's 1996 relaunch of the series, titled JLA. During this time, Gotham City faces catastrophe in the decade's closing crossover arc. In 1998's "Cataclysm" storyline, Gotham City is devastated by an earthquake and ultimately cut off from the United States. Deprived of many of his technological resources, Batman fights to reclaim the city from legions of gangs during 1999's "No Man's Land".
Harley Quinn: Best known as "The Joker's Girlfriend", Harley has had occasional romantic encounters with Batman, most notably her kiss with him in the episode Harley's Holiday from Batman: The Animated Series. Recently, in the The New 52, there have been a couple of stories in which Harley became infatuated either with Bruce Wayne or Batman. These attractions appear to be entirely one-sided and Batman has shown no signs of attraction towards Harley.