Agreed. If the bugs were found out, I think with Cordia, probably her reaction towards the MC would be disappointed, though perhaps would be understanding (like she did when she caught MC in her office "I don't approve of your actions, but I understand.") depending on whether it's camera or audio bug.
With audio, I can see her being lenient, with camera, I can see her being strict on MC (given that he can peek on her daughters' rooms lol) and even give punishment (with 0.07, I might just make 2 saves, one with camera, and one with audio).
But even with punishment, I'm kinda doubting it will be severe. Cordia really seems to have a soft spot for MC (with her friendship with MC's mom Rina, and the possible mysterious relationship with MC's father).
With exception of Wilfred, Gracie is the most intelligent character I believe. But I think compared to Luna, she fails to read the mood or intentions of characters (such as when MC didn't want to go too much into his childhood in beachhouse prison event, she tried to push him saying "We have time." Luna had to intervene saying "Gracie! He said he'll talk about it another time!" Also, there's Jalen's event as well, where Luna understood the true meaning behind Jalen's warning, whereas Gracie just took it as threat towards the family).
Just comes to show while highly intelligent, Gracie has a long way to go in terms of social understanding.
Luna, I think may be mix between hurt and angry. But I think MC reached a milestone with her in terms of relationship (evolving possibly from "very good friends" to "love"), so I think he'll be forgiven.
Agree that Isabel is most tricky to predict.