In chapter 10 there is a conversation in which Bingley says something along the lines of how quick he is at the writing of letters resulting in the fact that he is not always clear in what he wants to say because his mind is moving at so fast a rate he just goes with it. Lizzy says that his humility would prohibit censure. Darcy says humility is just a form of bragging. He refers also to Bingley's statement earlier in which he says that if he ever decided to quit Netherfield he'd be gone in five minutes. Darcy criticizes this too saying he'd be leaving a lot of business undone, etc. Bingley says that he really believes this of himself and he was not showing off for the ladies. Darcy protests furthur by saying that Bingley's success would be a matter of chance because if a friend or relative were to implore him to stay another week as he was getting on his horse to leave, Bingley would probably do it, and in fact, stay a month if asked. Lizzy says that Mr. Darcy has only succeeded in proving Bingley a better person than even Bingley has done himself.

Now Darcy has admitted to doing just the very thing he scorned Bingley for being vulnerable to---as a friend, he has talked Bingley into quitting Netherfield to get him away from Jane. And Lizzy no longer sees this (Bingley complying to a friend's wishes) as something to be admired. No, she is fuming. They have each moved to the opposite side. Hmmmmm.