Netflix adaption

Warning: Unmarked spoilers.

Season 1

Nick continually calling Harry out for his behaviour, including telling him he's homophobic on his birthday and punching him to defend Charlie.
After a season of Ben's bullying and abuse, Charlie beating him in the school race and giving an epic "The Reason You Suck" Speech.
Charlie: "I understand that you're figuring out your sexuality, but you don't get to make me feel like crap anymore just because you hate yourself. So leave me alone."

Charlie protecting Nick at the bonfire and telling Harry to piss off.
Charlie rejecting Harry's apology with a simple no, and slamming a door in his face.
Nick telling his brother and dad off at dinner.
Tori kicking the phone out of David's hand and threatening to end him if he badmouths Charlie again.
Charlie rejecting Ben's apology with another "Reason You Suck" Speech.