Mr. Collins had only to change from Jane to Elizabeth – and it was soon done – done while Mrs. Bennet was stirring the fire. Elizabeth, equally next to Jane in birth and beauty, succeeded her of course.

– Jane Austen

Pride and Prejudice, Chapter 15. After setting sights on Jane Bennet for his wife, Mr. Collins has no problem switching his attentions to Elizabeth, when Mrs. Bennet points out that Jane is soon to be engaged to someone else. In his search for a wife, the ridiculous Mr. Collins doesn’t really care who he marries.