Ron groaned as the lights came on, noting that Hermione had just made the decision of whether or not to fully wake up for him. He sat up in bed, blinking as he adjusted to the newly brightened room.
When she finally came into focus, she looked like she was half-frozen. "What were you doing? The map said you were at your parents, but you look like you've been trudging around in the cold..." he stated. "Bloody hell, it's freezing out there, Hermione!"
Forgetting that they were mad at each other, he climbed out of bed and walked over to her, gently placing his hands over her reddened ears a moment, before dropping them and pulling her into a hug. He'd sobered up slightly by this point, but not enough to know that this might not be the best idea given the circumstances.
"You're freezing cold," he said, stating the obvious. He'd been warm when he'd climbed out of bed, but her skin had been like ice to the touch. Mental.