Batman and Catwoman clash in Gotham War after years of an on-again-off-again unofficial relationship. As many Batman comics have explored, there's several ongoing trends in Bruce Wayne and Batman's dating life. Given the Dark Knight is "married to the job," it's extremely difficult for him to maintain long-term relationships.
Source：https://www.cbr.com/batman-bruce-wayne-major-love-interests-chronological-order/
