Changed Opinion

 Since Catherine is constantly interacting with Jason I do not think she is paying more attention to Jason and not David intentionally. It is because Jason is the only person that Catherine can interact to without being self conscious so I think this is the only place Catherine can go to have pure fun and put everything aside to just live in the moment, this is making me think the main idea is "Don't Worry, Be Happy." ha ha best song ever, back to business...