A man of culture must know the terminology. Back to school.
It's like telling a pimp that his girlfriend is cheating on him with another man, and his "girlfriend" is a prostitute he's pimping.
I quote : "Netori/Netorare is more than a simple act of infidelity, but the fetishization of jealousy and other negative feelings commonly associated with it. The one who loses their loved one almost always finds out about the situation and suffers from jealousy and the feeling of helplessness arisen from an inability to change anything. The one committing netori and/or the stolen loved one might rub it in by humiliating the loser in private or in public."
There is no netorare here, the MC doesn't suffer from jealousy if a player projects their jealousy onto the MC, that's not the game's problem, it's the player's. I conclude that the one who sees NTR everywhere is probably looking for NTR everywhere (maybe that's your naughty hidden fetish).