[@carla6677] Ahhh yeah just checked and Deon left too, oh well. 
Well, they don't share any classes. Maybe Kenna would see him in the hallway or at lunch? I'm sure Lucifer wouldn't be too happy to see her...
For now, you can have Aria interact with him, or do something that would catch his interest. Obviously, he isn't the type to go up to others unless curious.