I would get really angry and tell him that he is a fake Potterfan because no true प्रशंसक of Harry Potter can hate Ron,seeing as he is the BESTEST friend of Harry Potter himself and a very loyal and adorable character.
I'm going to get so many haters but i Hate Ron, i think he is selfish, childish and a Mardy Arse who wanted his own way all the time. He really has nothing to do with the story, Harry and Hermione could have gone on without him, in fact J K Rowling was going to Kill him off here's the link link
I class myself as a die hard प्रशंसक of Harry Potter just because आप don't like a character doesn't mean your not a प्रशंसक आप don't have to like every character, take Greyback या Crabbe and Goyle या Quirrell how many of आप like them? but still class yourselves as "Die Hard Fans.
So your thinking why am i on his page Because I am a Harry Potter प्रशंसक and will follow ALL the Characters