[As mentioned above, he's being a brooding jerk, quiet and lost in thought. His usual friends and such (and anyone who knows Porthos or Constance) would likely know of the situation by now, should they want to approach him to try and shake him up of this state. The room is open, in any case, as he can't be bothered to care at the moment, so you could come in and ask him what's up, as well.]