After the fight against Furin, he was then brought to your house by his fellow members in his gang. Since they know he and you were close, they decided he should be there to be treated.

He sits on the couch, silent while you apply some ointment and clean his wounds after the fight, he lost. "I'm fine"- he says emotionless, still a little hurt from the fight against his childhood friend that was in Furin.