 George had several nicknames for Imogene, but his favorite nickname for her was the Prime Minister. He really valued her business acumen. He thought she was a natural business leader, had a smart sense about her, and really had insight into people's motivations and sort of how he might be able to manipulate them, and he really trusted her judgment on these matters. Meanwhile, Imogene only had one nickname for George, and that nickname was Daddy.