Ron could barely stand you,now that he lost his dad was even worse,he blamed you for everything.

even for his dad's death when you literally didn't do anything, because he couldn't help but hate you with his whole will,you basically fought everyday.

you weren't even that hard on him,you were before all the trouble but now you didn't do anything to him and you tried your best not to do anything, but you quickly understood that this was his way of getting over his dad's death.

"and I just blame everything on you... at least you know that's what I'm good at"

he says in the middle of a fight.