He’d find it funny at first! Like, how could such a tiny fluffbeast be so agressive and harmful?
But he’d watch it and be slowly immersed in the story and animation. He’d use his coding skills to make tiny rabbit-themed minigames afterwards. Just find anything related to fluffbeasts he could encounter and buy them all for you.
Also, even help you consider tattooing a rabbit somewhere in your body. Maybe your wrist?