You shouldn't end a friendship over petty reasons.
Bill and his friend had agreed to meet at the movie theater but Bill's friend arrives half an hour late, so they miss the movie.
Bill wants to show his friend that he's unhappy with them being late for the movie.
Bill tells their friend that he's angry that they're late and that they are to blame for Bill missing the movie .
Bill says that he doesn't want to be friends with the person who was late anymore because he can't even count on them to be on time.
Bill's friend apologizes to Bill for being late and promises to be on time for things from then on.
The person who was late can't believe that Bill would end their friendship over such a little thing like being late.