Miss Bingley was very deeply mortified by Darcy's…

““Miss Bingley was very deeply mortified by Darcy's marriage; but as she thought it advisable to retain the right of visiting at Pemberley, she dropt all her resentment; was fonder than ever of Georgiana, almost as attentive to Darcy as heretofore, and paid off every arrear of civility to Elizabeth. Pemberley was now Georgiana's home; and the attachment of the sisters was exactly what Darcy had hoped to see. They were able to love each other, even as well as they intended. Georgiana had the highest opinion in the world of Elizabeth; though at first she often listened with an astonishment bordering on alarm at her lively, sportive manner of talking to her brother. He, who had always inspired in herself a respect which almost overcame her affection, she now saw the object of open pleasantry. Her mind received knowledge which had never before fallen in her way. By Elizabeth's instructions she began to comprehend that a woman may take liberties with her husband which a brother will not always allow in a sister more than ten years younger than himself. Lady Catherine was extremely indignant on the marriage of her nephew; and as she gave way to all the genuine frankness of her character, in her reply to the letter which announced its arrangement, she sent him language so very abusive, especially of Elizabeth, that for some time all intercourse was at an end. But at length, by Elizabeth's persuasion, he was prevailed on to overlook the offence, and seek a reconciliation; and, after a little farther resistance on the part of his aunt, her resentment gave way, either to her affection for him, or her curiosity to see how his wife conducted herself: and she condescended to wait on them at Pemberley, in spite of that pollution which its woods had received, not merely from the presence of such a mistress, but the visits of her uncle and aunt from the city. With the Gardiners they were always on the most intimate terms. Darcy, as well as Elizabeth, really loved them; and they were both ever sensible of the warmest gratitude towards the persons who, by bringing her into Derbyshire, had been the means of uniting them. ””

— Jane Austen