Based on the context and the answer, generate a question. 

Context: " That 's why I thought you might be ill . " Sanzo 's frown deepened as he stared at the ground and ran a hand through his hair in distraction . " ... I ' m sorry , " he mumbled , shocking Hakkai and not paying attention at all to what he was saying as he retreated back inside .

Answer:

Sanzo feels that Hakkai is unhealthy .



Why is Sanzo so disheartened as he speaks ?