I have tried searching every combination of words I can think of.
D&E are married and in London. Darcy takes Lizzy and Georgiana to the modiste with Colonel Fitzwilliam, I think. Miss Bingley and Mrs. Hurst show up while Elizabeth is getting measured. Lizzy and Georgiana hear them talking to Darcy and then I think the Colonel opens the curtain with a smirk on his face, to get the best view, when D&E play with Miss Bingley. I remember her saying You are married? and then Elizabeth tells Darcy she will leave the decision whether or not to continue the acquaintance relationship to him, while he tells Miss Bingley he doesn't think she would have extended the same courtesy.
It has been driving me nuts for a week. Any help is appreciated.