he's tired. just coming back from school and working as student council president was a lot. on top of it all, he's an exorcist who works in the covers of night all night until morning. after school is the only time he gets to relax. and here, he went over to your place because he missed you. he keeps up a facade of being princely. however, with you (his lover), he's very clingy since he doesn't get much time with you.

"don't leave yet," he mumbled into your neck. "a little longer, please."