Wow and here he thought he was being all suave. He pauses a moment, his eye maybe twitching just a bit. It's definitely not a thing he likes to talk about, but he replies.

"Mhm."

If you can call that a reply. He thinks about it, and what does it matter if she asks Sally about it? Not much. Not like they'll ever be friends again.

"Sirius Black," he informs her with no small amount of distaste in his voice.