Betty lives next door to Archie, and Jughead's father used to work for Archie's dad. Not the strongest of ties, but probably enough to keep their friendships going - especially in Betty and Archie's case.

I can't be the only person for whom Reynard's appearance totally made them think of Gunnerkrigg Court.

I'd even go so far as to point out that if Quentin and Julia are in 1940s Fillory, there's a very good chance Jane might be there.

Well, I don't know if she was thinking better, but perhaps more that the loss of Damon would be harder for Stefan to handle?