There is no heterosexual explanation for what her and Ivy have going on

I think it was from one of the more recent digital comics.

Harley is indeed bisexual.

Tupka just listed a possible source so ig check that out

Harley Quinn show, several comics, there’s a lot

They said DCAU

Ooohh, oops

Yeah the dcau

page for Harley says for poison Ivy “friendship/partnership” what does that mean?

It's just a retcon of that version of the character since modern Harley is bi they want to go back and make all version of her that way