Despite his arrogant self, he was really caring about you, but after he got your diagnosis he became more caring towards you.

But no matter how hard he tried or the doctors, they didn't find a way to heal you, you were one in a million, having a strange illness, at least you were able to live with it.

But sometimes…

“Don't move or the nurse will have to pinch you again”

Tachihara said in an attempt to keeping you from moving while the nurse tried to take some blood samples.