A nother well-done chapter. Your explanation of Ron's behavior is plausable. I used something like that (The 'brain attack' that is) in two of my own tales. it's like a radio wave feedback loop. It gets stronger with each cycle. Soon enough it's going t come to a head. Ron has shown his willingness to attack Harry, and that's going to get woree as well. I hope Harry realizes/discovers the reason, and finds some way to counter the poison now infecting his best friend.
As always, I eagerly await the next page oof 'Best Served Cold' Alorkin