It was automatic, two schoolboys calling each other names, and it made him smile momentarily.
"Then why didn't you show it? Assuming our timelines were the same until meeting up during the war changed them." Because that did seem to be the case. "If you missed me, why the fuck didn't you show it?"
He didn't know if that was really what he was asking. He was lost somewhere deep inside his own mind, with the drums and his past, trying to make sense of it all, and what the future might hold for him, with his own Doctor. Or without him.