So it really was just him that heard that. But what did he hear? And how? It couldn't have really been the girl. This place playing tricks on his mind, somehow or other.

There's an amused huff at the observation about social interactions. He isn't going to confirm or deny that, but it's funny that Sebastian framed it by insulting himself. The next question distracts him from the thought, either way, and his expression immediately turns hard.

"None of your business."