Bingley slowly begins to declare his proposal of marriage to Jane, when he suddenly has to leave to Netherfield. Netherfield is the house he lives at most of the time. He did not plan to leave for a long time but his sisters use this chance to move Bingley and Jane away from each other. The sisters follow Bingley to London. Bingley's quick leave makes Jane sad and confused. Elizabeth finds out that it is because of his sisters.