who sees that she(lucetta) did not suspect the secret of her more reserved friend in chapter 30? what is that secret ???

Elizabeth-Jane wryly notes that she knows who the lady of the story is, and that her father is the first man in the story. She tells Lucetta that she has two "proper" choices: marry Michael, or remain single. When Lucetta flings her hand out, revealing her wedding-ring, Elizabeth-Jane thinks that Lucetta has married Michael. When Lucetta confesses that she has married Farfrae, Elizabeth-Jane is crushed. She quietly moves out of the Hall to an apartment across the street from Michael's rooms. The townspeople, who have been discussing the secret wedding, wonder if Farfrae will live off Lucetta's vast funds.