He's not your husband.

He knows he shouldn't feel that way. Sneaking around after a new him, making plans, all that, to live an ordinary life. Here he is. It's all he ever wanted, isn't it? Although, he tries in vain to behave like your real husband. He shouldn't love you. He was only supposed to pretend. Kosaku tries to push you away, subtly. But he can't.

"Sleep. It's late."

He demands, his voice is cold and dry. He tries to not look at you. He's trying hard. He cannot fall in love.