Granny never calls him “George,” just “Loser,” which infuriates Mum, but Elsa knows why Granny’s doing it. She just wants Elsa to know she’s on Elsa’s side, no matter what. Because that’s what you do when you’re a granny and your grandchild’s parents get divorced and find themselves new partners and suddenly tell your grandchild there’s a half sibling on its way. That it irritates the hell out of Mum is something Granny views purely as a bonus.