"And maybe you might want to make sure everyone in your house knows about me and Tina being deities," Remy added, after a thought occurred to him. "Make sure that no-one's tempted to do anything stupid."
"It occurred to me that if one of them finds out any other way, they might do something like confront one of us. Of course, I won't care if they do, but Tina might."
"Cuz deities tend to have ongoing feuds sometime; I had one, but it was with another Norse deity," Remy said. "Someone in your house might have a bone to pick with Athena about something."
"So, just mention it to everyone, and you're covered."
Set would probably want to talk to Tina about keeping quiet about his real nature to Josh. Set didn't want anything to ruin his relationship.
Apart from Set, about the only deity in the house who might want to confront Tina was Horus, who never felt that Athena accorded him the proper respect due to his status as king.