"If you're tired, you should definitely rest. Chouji has stopped hovering literally, but he makes up for it with some figurative hovering. She needs to take care of herself. He'll do whatever he can to help, reaching out a hand to support Hinata as her eyes close, just in case she really does fall asleep right where she sits.

"Here, you can lean on me if you need to." Chouji sits down next to Hinata. He has no idea whether he can do anything about exhaustion. It isn't precisely an injury. At the very least, he can do this. Maybe he can manage more, but this will work for a start.