Why hate Edith so much?
Mary's mother has commented several times that she didn't want to be around Edith Potter or listen to Edith. Why her? I would think that if Mary's mother was going to dislike someone, it would be Sylvia. Edith was much nicer than Sylvia. Edith looked shocked when Sylvia told Mary about the manicurist.
She was a gossip, but not the worst one by far.