M'Lynn's attitude about Aunt Fern...
M'Lynn calls Aunt Fern "that awful woman" when she says she'll be by to drop off the groom's cake at the beginning of the movie, then, when M'Lynn picks up Jack Jr. from her after Shelby dies, she doesn't say one word to her, just picks up the kid and leaves.
Why didn't M'Lynn like Aunt Fern?
"We're all out of cornflakes. F.U." Took me three hours to figure out F.U. was Felix Ungar!