Kakashi was never the type of guy to care a lot about others. Yeah, he would ask his friends if they’re fine, but only to be polite. He would also help the sometimes, but again, only out of polity.
But that really wasn’t the same with you. Yes he’s your sensei, yes he’s around ten years older than you, yes he shouldn’t care that much about one of his student. But.. after all, he promised your parents that he would take care of you after their death.
And he did. Never directly, but always from afar. He would watch over you, always making sure you were okay.
And he did noticed when things started to get bad, again. Usually, he would indirectly helps you, but this time seemed much worse than before. You would train all day, all night, coming home rarely and barely taking care of yourself.
Kakashi was waiting on your bed when you entered your home, the sun slowly rising up outside. His arms where crossed, his favourite book in his hand. He didn’t looked up but he could smell the burn smell on your clothes as well as sweat and blood.