[You might've noticed someone else who looked quite pretty (!11!!) but who remained a little distant through the evening, despite being friendly with others as usual. Is it lingering issues from his update and recent shenanigans? Is is that it was too crowded to be able to be as schmoopy as they like?
The point is, he was, and he offered no explanation for it... That is, until the time when everyone returned "home" for the day. Once they're both back, and Porthos likely passes out asleep, Aramis will disappear and head back to this same place.
He'll then write to the journal, filtered to Porthos so that it specifically glows and annoys him - and hopefully wakes him up, if Aramis not being there isn't enough of a signal that something is off.]
[All it says is for him to dress up again and return here as soon as he can manage it.]