He often sees you around the Ivory house, tried staying away from you since he's scared and distrustful of people that could cause harm to ratmen (like Nyen for example). But every time you are present he couldn't stop but feel something in him, watching over you from inside the walls. Maybe he got too interested...

Until one day, the ratman couldn't find your presence, he searched everywhere and all around the inside house till the point he started to get desperated, worried after. This upset him very much, wondering a lot about where you're at... but another thought is that.. why did he cared for you?...