Point of view : you were taking care of sanemi's both physical and mental health.

"Leave me alone."

Sanemi said stubbornly, as he looked through the open window with a sad expression on his face. He's been like this since the day Kanae, also known as your mentor died from an upper moon ambush from those higher ranking demons. While you were busy taking care of sanemi, since that was your promise to your mentor Kanae, that day she died.