"Go and see this Bingley if you must, though I warn you that none of our girls has much to recommend them; they are all silly and ignorant like their mother, the exception being Lizzy, who has something more of the killer instinct than her sisters."
Mr. Bennet, despite having trained his daughters to be formidable fighters of the undead, unfortunately doesn’t think to highly of them--save for Elizabeth perhaps. It would seem that he views their lifestyle to be a necessary evil and not something that he’d be comfortable boasting about.
"But perhaps," added [Mr. Darcy], pressing the pointed end against her neck, "these offenses might have been overlooked, had not your pride been hurt by my honest confession of the scruples that had long prevented my forming any serious design. These bitter accusations might have been suppressed, had I, with greater policy, concealed my struggles, and flattered you into the belief of my being impelled by unqualified, unalloyed inclination; by reason, by reflection, by everything. But disguise of every sort is my abhorrence."
During their big fight-cum-proposal scene, Mr. Darcy confesses to Elizabeth what he feels about misrepresenting himself; that is, Mr. Darcy hates lying--period. He couldn’t mask his lack of enthusiasm about marrying someone from the middle class, a fact that wounds Elizabeth's pride making her respond to him with annoyance.
“Darcy had never been so bewitched by any woman as he was by her. He really believed, that were it not for the inferiority of her connections, he should be in some danger of falling in love, and were it not for his considerable skill in the deadly arts, that he should be in danger of being bested by hers for never had he seen a lady more gifted in the ways of vanquishing the undead.”
Mr. Darcy now realizes that he is deeply smitten by Elizabeth because of her unique combination of beauty, candor, and uncanny skill in combat.
"Miss Elizabeth Bennet!" repeated Miss Bingley. "Defender of Longbourn? Heroine of Hertfordshire? I am all astonishment. You will be having a charming mother-in-law, indeed; and, of course, the two of you would fell many an unmentionable with your combined proficiencies in the deadly arts."
When Mr. Darcy openly remarks that he fancies Elizabeth, Caroline Bingley begins to mock him and the very idea of their union. Her intention is not merely out of spite however as there is some concern motivating her catty remarks. She, in her own mean-spirited, backhanded way warns Mr. Darcy that to be wed to Elizabeth would also mean having Mrs. Bennet as a mother-in-law--a condition that would all but ensure a difficult life together--at least in her opinion.
