between Georgiana & Bingley. In spite of what Miss Bingley had told Jane, neither of them appear to be in love with each other or intent on becoming married, etc.

The passage under discussion is from Chapter 45, when the narrator is talking about how Darcy had made sure that Bingley's relatives did not find out about Georgiana's near-elopement with Wickham. The narrator says that Darcy had done this in part because he "had certainly formed such a plan [i.e., for Georgiana to marry Bingley], and without meaning that it should effect his endeavour to separate him from Miss Bennet, it is probable that it might add something to his lively concern for the welfare of his friend."