She was once a regular Mobian before becoming infatuated with the alien/demonic entity known as "Xyenxon". Now she's basically in love with him and is freaky in more ways than one. She was an edgy young adult before becoming Xyenxon's Harley Quinn. The only thing Xelma finds unappealing about Xyenxon (who she calls "Xenny" as a nickname) is the lack of face. She'd rather have Xyenxon wear his scuffed looking belted white mask if he were to be romantic near her.

Maybe it wasn't the best idea for her to fall for a literal demon like in those crappy fantasy novels...