The truth was, Harry had spent loads of time blaming Ron for cutting and leaving. But without the locket making him crazy - he couldn't blame Ron. He'd been out of his head too, and he knew that whatever happened, Ron - Ron as he usually was - wouldn't have gone anywhere. "Yeah well, you were just waiting until you could come pluck me out of drowning so I wouldn't be brassed when you finally came back," he answered, giving Ron's shoulder a light shove.
He reached for the other half of the scone and lowered his voice more, just in case Hermione had her bat ears on. "You just left because you were sick of the food."