When Mr. Collins could be forgotten, there was really an air of great comfort throughout, and by Charlotte’s evident enjoyment of it, Elizabeth supposed he must be often forgotten.
– Jane Austen
Pride and Prejudice, Chapter 28. Charlotte and Mr. Collins’s marriage is not a love match but very much one of convenience. Here Elizabeth is commenting on their relationship. Charlotte is content with the comfortable life she has made for herself in the parsonage – as long as she can forget all about Mr. Collins. And judging by Charlotte’s evident enjoyment, Elizabeth says that Mr. Collins must be forgotten about often.