Ron was a petulant child for most of the book, literally. He was 11 when it starts and treated everyone, including Harry, pretty shoddily too.
The relationship between the three of them was a childhood friendship for the most part with all that that brings. Teasing, banter, falling out, learning how to behave and treat others.
True, but on balance I think Ron is much meaner to Hermione than Harry through the years.
Even in the Deathly Hallows, it seems like both Harry and Ron were mean to Hermione whilst they had the ‘excuse’ that they were wearing the Horcrux, but we never see Hermione wearing it and being mean?
I am remembering the films more than the books now though, and agree that JKR bashing is ridiculous.