It is rude to ditch your previous friends.
Trudy has plans to go to the movies with her friends, but a cute boy asked her to go to the movies with him the same night.
Trudy wants to go to the movies.
Trudy tells the boy she already has plans but would love to go next weekend.
Trudy ditches her friends and goes to the movies with the cute boy.
The boy tells Trudy that's okay with him, and they have a wonderful date and end up being boyfriend and girlfriend.
The boy finds out Trudy ditched her friends and decides to not date her any more.