Quote Originally Posted by Jackalope89 View Post
BTAS Harley did team up with Ivy a few times. But at some point, had a kid, and then grandkids. Why?
Because the Ivy/Harley ship is a recent development that it wasn't a part of Harley's original characterization. There's even an infamous page from one of the original BTAS comics where Harley asks Barbara if she and Supergirl are together to which Barbara questions Harley about her relationship with Ivy to which Harley asks shocked and decides to drop the whole thing.