It's rude to point out someone's lack of friendships.
Phil notices that he has way more friends than Jane does.
Phil wants to decide if he should say something to Jane.
Phil is curious why Jane has fewer friends but decide it would be rude to pont it out.
Phil makes fun of Jane for having less friends than him.
When Phil pays more attention he notices that some people seem to have 100 friends and others nearly none.
Phil's friends point out that that was hurtful of Phil to say.