What can you conclude about this sentence? “The forfeited money upset her more than the murder of her uncle,if he was her uncle.”

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 concerned with the money her husband forfeited by not showing up.