It's not that he doesn't like his parents.

He respects that they had a hell of a job raising him, and he respects that they did better than anyone could ask for at that job, and that's why he needs to never ever go near them again in his life.

So he put a lot of work in to make sure he got a full-ride scholarship to a college that was not too good, not too bad, and not remotely close to home, and he didn't hug his mother goodbye, and he didn't explain why, and he lied to them about where he was going and about the secret second phone he paid for with the money from his summer job. So long, Mom and Dad. You got your son all the way to his eighteenth birthday sane, healthy, somewhat emotionally regulated, and without the faintest whiff of a criminal record, and he will repay this service by staying far, far away from your cozy little hometown and everyone in it.