Harley Quinn & Birkhoff
Harley's longest relationship was the year she spent with the Joker. But the time they had before that, everything that lead up to it, well, that should count for something.
She still wasn't sure about the comic book thing. It was cool, but if Birkhoff told her he fantasized about her, it might go to her head.
"Yeah, I went to prom. I was a good student. But I did end up in the back of a car. Good student, kind of a slut."