Yes, Delia grew up and her stories had to reflect that. She couldn't have the cutesy, little kid stories that she had in season one (which I love, of course), but how interesting would it have been to see her growing up and still having a bond with Nina, and especially Edna? The cutesy stories were easy with those two, but it's more challenging to see a preteen or a teenager have a relationship with them. People don't just lose their bonds so easily, and I never understood that at the very least we didn't get a few scenes of Edna and Delia reminiscing, or Nina trying to help out Delia but Delia being resistant. If they weren't going to continue the bond, at least give us a few scenes that reference it. It all just disappeared suddenly.