I watched the show. She is also kinder, happier, more friendly, more traditional, and less dramatic than the other swans. I also don't think she is a swan by the show's standards because she is not aggressive. She and Truman had a great friendship.
She had fewer clothes than the others, and was less Socially prominent than the other girls, who's husbands really were rich. She lived in a small apartment on Park while the major swans lived better on Fifth Avenue. Babe and her sister, Mrs Whitney, lived on adjacent estates with acreage, on Long Island, up the road from Cee Zee's modest place. The other girls knew Mrs Guest had a tendency to plant stories, Trump-style, exaggerating her Life. She was not actually part of Babe's world or Slim Keith's circle or Princess Lee and Jackie and Ari. She was only "famous" here because Truman shone down on her. She was as desperate for his attention, which elevated her out of the woodwork, as Truman was desperate because none of the Swans was acknowledging his existence. It was mutual exploitation they shared, more than friendship. Cee Zee was an angry social climber, never happy, always frowning, and condescending to all. People with real standing in the world, like Mrs Astor, didn't need to condescend to anyone. She was secure with her position. At one time, the man I worked for, was close friends with Bunny Mellon, who had no need of any of the glamorous life. SHE was the real deal, the Gardner who helped her friend Jacqueline by creating a rose garden at the White House. My boss flew every weekend down to Virginia to see Bunny. He too was sincerely obsessed with flora and fauna. It is incredibly funny that Mrs Mellon was really really living the life that Cee Zee pretended to the news that she was living. Cee Zee Guest was living an imitation of Bunny's life, which was not her own. Bunny Mellon most likely never knew Mrs Guest; Mrs Mellon wasn't that snobby. Bunny was a real Aristocrat, a real gardner, who knew about things like soil. All Cee Zee Guest knew was dirt.
