Ron made a more or less neutral hm sound in his throat at the mention of Krum. It was much easier to let it pass when Hermione had just pulled herself off his neck, but it wasn't something he cared to dwell on, either. "I can heat up some soup," he said, carefully blank.
He almost smiled at attempt the get out of the way. "So you can go freeze your arse off again?" he asked, knowing full well they hadn't missed anything. "Thanks, but I'm through with swimming for the day. Whatever it is, you can sit through it one more time." Very reluctantly, he stood off the couch and went to find something in a can.