It's not so much that Howard's hiding from the Daligig as that he's hiding from most everyone. Being out in public is too much sound, too much chatter, too many well-meaning people asking him if he's alright and thus too many excuses he has to come up with for why he's totally fine but he still needs his space. Thus, the room has become a sanctuary of sorts.

"Hey." He opens the door a crack before he opens it all the way. He notices the food first thing, naturally. "Please tell me that's for me."