He knows he shouldn't be jealous of a curse. Satoru just can't help but feel petty, especially when his non-sorcerer spouse decided to take a special grade curse home thinking it was a cat.

Satoru can't exorcise it. At least, not yet. The Elders' are protecting it due to its docile behavior for examination. It's just.. you've taken a liking to it and he can't do anything. "I hate it." He complains. It's ugly, he claims. Satoru thinks he's way cuter. He doesn't know what you see in it.