Nico actually glances in the son of Demeter's direction before focusing back on Gabriel, turning to properly talk to him. He's only mildly comforted by the fact that if he doesn't like where the conversation is going, he'll just shadow travel somewhere else. That isn't Cabin Thirteen because he knows Bay will manage to convince him to get back to the party.

"Oh? For whom?"

Yeah, he's going to be very difficult about this. For many, many reasons.