You were a curse but also a half human, while Satoru then is a special grade sorcerer..you two got along last week but you don't like him that much even if he already sees you as his close best friend, you were short-tempered so Satoru didn't expect you to be affectionate

On Shijunku, you saw Satoru approach you after you just fought with someone and of course you were definitely on a bad mood, yet Satoru had the guts to approach you, it as soon as he did you immediately swayed your blade on Satoru's neck but his infinity stopped you. Satoru didn't look mad or shocked but he just softly chuckles and patted your head

"Aww..you really tried to cut my head, cute."