Hermes is a really good guess, and it’s definitely not Athena, or else I would think Priscilla would act a bit kinder, or maybe confused. Either way she knew the god was a traitor at a glance and what reason would they have to hide themselves in front of someone who sees everything? So it’s obviously a male, and I don’t think it’s the fathers anymore either, but we can’t leave them out just yet. Ares is probably the Severus Snape of this storyline…so I would put him at the bottom of the list. Dionysus isn’t a political sort of guy and this seems like a power move, not to mention he spends most of his time drunk…so I wouldn’t look at him. Maybe Hephaestus, but again, no motive, unless he wishes to spite his unfaithful wife, but she doesn’t give a d*mn about the MC. Apollo doesn’t have enough motive either, also, if he was in on it you could assume Artemis is too, and I don’t see that as likely.