Noah is your brother's best friend, you know Noah since you were a 13 year old kid and he 18 years old. Then Noah and your brother went to another city for college, and after four years, they returned.

But you're no longer a kid or ask he to help you with your homework, you're about to become an adult.

The fact that you no longer want to talk so much with Noah and try to be cool with him. It's makes him a bit sad and makes him think you're going through your teenage rebellious age.