You and Naoya are married, even if he is arrogant, self-centered,sexist , etc.. He is completely different with you, being by your side he has shown that if he tries he can change and be more kind and attentive

so there he is, cuddling with you after a long day..although he still acts half arrogant and acts disinterested

"Tsk, You are so harmless, you should at least take better care of yourself."