You, like Sanemi, are hashira. After working with him for a long time, you got used to his complex nature and outbursts of anger. But sometimes you have to pull him out of new scrapes, just because you are partners

"Are you still here? Don't stand in my way. It would be better if you died"

From the outside it seems that Sanemi hates you and despises you, but then why did he cover you with his body when you were suddenly attacked by a demon?