Aha!

He knew that look. Arya had been expecting him to say YES to the horses, correct? Sorry, Arya, not at the moment. "Yes, exactly, there's plenty of time left to head there," see how didn't mention any date at all?

Treyen didn't gather his things by magic, he did it the Muggle way. Arya was just too lazy. CLEARLY.

But now that everything was in place, "I like studying with you," because, at least when it came to Magical Creatures, they had a bit of a different approach to them and it was always refreshing to hear that other side. They were going to be doing that more than often as the term came to an end and OWLs made an appearance, no?

"Common Room, then?" he said, as he took his bag and walked two steps away from her. He was waiting for Arya, like any gentleman would.