Catwoman should have a Robin, because symmetry.

Except “an orphaned preteen, brought up as successor to the tradition of vulnerability-masking aggression” (the atom of the Batmanverse) is especially pulpy for the Catwoman, thus female, thus sexual variant

Maybe more pulpy than the contemporary Batman could bear? Wow wow that’s a wow.

Solution instead it was a (cat) lady grown to her late 30s in escapist obesity never had to live up to her self-conception (that’s why she wrote fanfic) who gets hit on the head, hard, in one of those timeless Gotham muggings.

She comes out of the coma years later, 100 pounds lighter, her inhibition completely gone (from the hit or one of those iffy psycho-professionals Gotham attracts like flies, that will vary by writer)

Sets out to live out her dreams, eventually attracts the attention of Selina Kyle who sees enough of a kindred spirit to want to protect and teach her

She is…

Cougar.

(edit: apparently Catwoman has a Robin. my bad.)