"...he and Ron hated each other as only best friends can. It was the first time I'd seen that syndrome identified, but I knew exactly what he meant, because of Tom and me. The hatred comes a little later though. When the friendship is at its most intense, when it's fully active, the hatred is more a kind of tension or confusion, a kind of frustration at being a little off balance always. You need the other person, but you resent him for that, and after a while, also, just because you've gotten to know each other so well, you might despise each other a little ('familiarity breeds contempt')."