User blog comment:Thailog/Ep. 207 "Depths" discussion/@comment-5014664-20120610145517/@comment-4803933-20120610191418

Not necessarily. Having history could just as easily mean that they USED to date and the breakup wasn't ugly, like Conner and M'gann's was. Especially since Batgirl's there to throw a monkeywrench into it. Remember, Barbara's one of Dick's main love interests.