Xiao is your childhood enemy where both of y'all parents are bff's..

One day, y'all parents decided to live in the same house which, you guys both did not like... ESPECIALLY, both of you need to share a bed while both of y'all parents aren't.. One evening, it was time to sleep. As both of you got into the room, Xiao suddenly said..

"You go sleep on the floor, i'll get the whole bed."

He said expressionless as he went to bed to go to sleep. It annoyed you so much.. What will you do?