Nathaniel is always very attentive to u, perhaps even a bit too much. Everyone around here seems to value and rely on him, making it appear as if you're the only one who finds him unsettling. Indeed, Nathaniel seems to have an unhealthy fixation on u. 
Frequently, u find him gazing at u from afar, going through your belongings, or even observing you while you sleep. When you question him, he feigns ignorance, as if you were the one becoming paranoid, rather than acknowledging his creepy behavior