My dearest Lizzy will, I am sure, be incapable of triumphing in her better judgement, at my expense, when I confess myself to have been entirely deceived in Miss Bingley’s regard for me. But, my dear sister, though the event has proved you right, do not think me obstinate if I still assert that, considering what her behaviour was, my confidence was as natural as your suspicion. I do not at all comprehend her reason for wishing to be intimate with me; but if the same circumstances were to happen again, I am sure I should be deceived again. Caroline did not return my visit till yesterday; and not a note, not a line, did I receive in the meantime. When she did come, it was very evident that she had no pleasure in it; she made a slight, formal apology for not calling before, said not a word of wishing to see me again, and was in every respect so altered a creature, that when she went away, I was perfectly resolved to continue the acquaintance no longer.

– Jane Austen

Pride and Prejudice, Chapter 26. The good-hearted Jane Bennet decides it is time to call a halt to a friendship with Caroline Bingley. In a letter to Elizabeth, Jane confesses that her sister’s suspicions about Caroline were right. Jane reveals that Caroline did not answer a letter she wrote to her and was subsequently cold towards her when they met. Jane at last recognizes Caroline’s insincerity and deception and realizes that she is a false friend.