Mobius listens, and, yes, it's entirely possible that Stephen and Gwen are still really just close friends (in the same way as he and Jude were just friends even if something yearned for a different word-), but it's a dramatic topic change to do a little gossip and make a little light. So. The comment on Cosima--and it feels weird to call her, well, Provost Niehaus, in the way that saying Provost Stark didn't feel weird to him--gets an equally bland look. Even if it's true.

The comment on Gwen gets Mobius breaking out into a crooked little smile. He hears a tone in Stephen's voice, just enough to suggest, and it's very cute. "And people say you're no fun."

What people say that? Mobius isn't telling.

"At least you've got backups to tell you when you've got a stupid and dangerous idea after I inevitably kick the bucket. Warms my heart to know."