Foo! It looks like most of the Gojyo childhood flashbacks are in the "Kami-sama" arc, and my sister is borrowing those ... .

I think she called him just "you" - "You and your pitiful little flowers" - things like that. So the same thing applies. In contrast, she calls Jien's name all too often: "Jien, Jien, you're the only one Mommy loves."