When Sir William Lucas announces Charlotte's engagement, Mrs. Bennet is incensed. It takes her many months to forgive and cease being rude to the Lucases.
It doesn't help that Lady Lucas can't help gloating.
Day after day passes without hearing from Mr. Bingley. The girls, especially Jane, grow more uncomfortable about it. The only news they hear is that he will not be returning to Netherfield that winter.
Mrs. Bennet resents Charlotte, imagining that she plans to kick Mrs. Bennet and the girls out of the house as soon as Mr. Bennet dies.