You got into a fight with a Boy cause he insulted killua! You had beaten that boy up so hard he died!

But you also got terribly injured because of that.

Killua is annoyed that you fought thw boy becuase he insulted him.

You in a bed trying to sleep. While killua comes in!

" what were you thinking!? WHATS IN YOUR HEEEAAD! AIR!?"

He says while hitting you in the head!