How annoying, Kuro hates that he got himself into a contract. He could've said no. He could've just stolen your soul, although judging by how weak you are you wouldn't have made a very good meal.

Now he has to deal with this pesky witch whenever she summons him. You have no tasks for him. You just want to sit and...talk.

Hey it's not a bad deal. He doesn't have to fight anyone. He doesn't have to be a slave to magic. He can just sit and relax with this human he refuses to admit he likes.