check out our:
"In vain I have struggled. It will not do. My feelings will not be repressed. You must allow me to tell you how ardently I admire and love you." (34.4)
Mr. Darcy is conquered by love despite all of his best efforts, showing that something about love (at least, as Jane Austen conceives of it) survives all attempts to nullify it.
"Your sister I also watched. Her look and manners were open, cheerful, and engaging as ever, but without any symptom of peculiar regard, and I remained convinced from the evening's scrutiny, that though she received his attentions with pleasure, she did not invite them by any participation of sentiment. If you have not been mistaken here, I must have been in error. Your superior knowledge of your sister must make the latter probable. If it be so, if I have been misled by such error to inflict pain on her, your resentment has not been unreasonable. But I shall not scruple to assert, that the serenity of your sister's countenance and air was such as might have given the most acute observer a conviction that, however amiable her temper, her heart was not likely to be easily touched. That I was desirous of believing her indifferent is certain--but I will venture to say that my investigation and decisions are not usually influenced by my hopes or fears. I did not believe her to be indifferent because I wished it; I believed it on impartial conviction, as truly as I wished it in reason." (35.3)
This hearkens back to the conversation Elizabeth had with Charlotte about whether Jane should display her affection more readily. It turns out she should have.
Mr. Bennet treated the matter differently. "So, Lizzy," said he one day, "your sister is crossed in love, I find. I congratulate her. Next to being married, a girl likes to be crossed a little in love now and then. It is something to think of, and it gives her a sort of distinction among her companions. When is your turn to come? You will hardly bear to be long outdone by Jane. Now is your time. Here are officers enough in Meryton to disappoint all the young ladies in the country. Let Wickham be your man. He is a pleasant fellow, and would jilt you creditably." (43.27)
As always, there's a truth behind Mr. Bennet's sarcasm. Here he's making fun of drama queens whose tragedy du jour gives them a certain amount of cache among their girlfriends.