In the book The Catcher in the Rye what does Holden mean when he says dont ever tell anybody anything If you do you start missing everybody?

My opinion about Holden's closing line at the end of the novel is that he ends it by trying to say that once you open up to someone the way he did, you start to miss them when they're no longer around. After sharing your feelings and thoughts with someone else you create this strange connection that enables you to just forget about it.