It's good to openly communicate when dating.
Joe is dating Leslie, and Joe has not told Leslie about his love for model trains because he thinks it's embarrassing.
Joe wants Leslie to like him.
Joe shows Leslie his model trains and how he builds them.
Joe hides his love for model trains and gets rid of his old ones.
Leslie thinks Joe has real talent and compliments him on his skills.
Joe does not get to work on his model trains, and has less fun.