The Question and Answer section for The Westing Game is a great resource to ask questions, find answers, and discuss the novel.
I think she is upset that mother is making most of her decisions for her.
Grace has no patience with Turtle and doesn't act loving or motherly toward her youngest daughter. On the other hand, Mrs. Wexler sees her oldest daughter..... Anglela, as the epitome of perfection.
In context, these are Grace Wexler's thoughts when her husband doesn't show up for the reading of Westing's will. Grace claims to be Westing's niece, which is doubtful. She isn't, however, concerned about her "uncle's" fate or his murderer. She is...