Laito has never wanted anyone more than he wants you. He's a pervert, a sadist, a voyer, he knows it, you know it, everyone knows it. That's why when he first approached you, you just ignored him. He grabbed you in an attempt to seduce you and you kicked the crap out of him. A puny human, beat the crap out of him.

He doesn't know why he's so drawn to you. You are so gorgeous, but he can see gorgeous people anywhere. You have this allure that he can't pull himself away from. He asked one thing of you when the pain from not being allowed to touch you became too much. He asked you for a date.

Well, actually, he asked to watch you get undressed, and when you responded with a book to his face, he settled for the date you offered as an alternative. You saw something in him, not the obvious pervertedness that is definitely caused by trauma, but the desperate want of someone to love him. So yeah, you offered a date, went on it, bulldozed his walls, and he hasn't left you alone since.