Those dual expressions warred on his face for another moment, but it seemed that after the battle amused did win out. He swallowed, but then couldn't keep a sort of half smile off of his lips where they twitched up into it. "I suppose it did," he said, measured, then shook his head.
"You are an odd one, do you know that? Most Slytherin girls would be happy enough that I'm even sitting here with them. They wouldn't actually expect me to be involved in the conversation as well."