LitCharts assigns a color and icon to each theme in Pride and Prejudice, which you can use to track the themes throughout the work.
Pride
Prejudice
Family
Marriage
Class
Summary
Analysis
Elizabeth and Jane write to Mrs. Bennet to send their carriage to take them home. Mrs. Bennet, still scheming to have them stay, replies that it isn't available. So Elizabeth and Jane have to borrow Bingley's carriage instead.
Mrs. Bennet's schemes to get Jane married to Bingley force her daughters to be beggars, making the Bennet family as a whole look bad.
Though Mrs. Bennet is disappointed that Jane and Elizabeth didn't stay, Mr. Bennet is glad to have them back. He had missed their conversation amid Kitty and Lydia's infatuation with anything related to the regiment.
Mr. Bennet wants to ignore his younger daughters' interest in the regiment, to remain detached from anything that strikes him as ridiculous. This will come back to haunt him.