Ron took in a deep breath, and resisted the urge to let go of her fingers to slide his arm around her. He liked the feel of her hand in his. It took a moment for the question to register, and then he wasn't really sure what to say. "Just - thinking. You know." Rather, not-thinking. But that didn't sound right. "Sometimes it's just all a little - a little much, back there." He felt his own face coloring a little, at that. He wasn't at all sure Hermione felt the same way. He knew she got tired enough of it to need to get away - obviously - but had the feeling she wasn't as easily overwhelmed as he was. He really ought to have been used to it by now.