"You know what I mean." His voice is firm as he rubs his forehead. "And you can't do your studies if you don't have any energy, and you won't have any energy if you don't eat. ... You're looking after me. I get that. But... it's not like it goes one way. I don't want to see you hurting if I can help it."

As much as he's being firm, there's fear around him. His body feels suddenly cold. He can't let Vexen get hurt or sick, he can't... he's put too much emotional energy into the man and started to care, he can't have that ripped from him again.