If she continues her relationship with Ivy on the pages of her comic, that means that one of the most popular DC characters will regularly be kissing another woman.
Unfortunately for Harley, Supergirl managed to ensnare Harley in her own weapon. It's unclear whether or not she did this more for Batman or more to save Ivy from the repercussions. The comic was not successful. Yes, that Lex Luthor. It wasn't just this psychotic criminal's wacky sense of humor or her incredibly unhealthy relationship with The Joker that made fans adore her, it was also the bond that she shared with another one of Batman's most famous foes. Their relationship was delved into more deeply when the two got their own shared comics as well as in the Gotham City Sirens series.