My ex-roommate was pretty angry because 1 month ago I sent him an email saying he was a fat ugly clumsy nerd who cant get a woman because he did something to upset me. Due to this incident my residence hall director moved me to a different dorm location. One day I had to wait until someone inside the residence hall laundry opened the door so I could use the laundry because my card was not working that day. Just to be a nuisance my ex-roommate asked me if I had access to the laundry by the university and said that if my room card is not working I need to get it fixed and not enter the laundry until I get it fixed. I told him to shut up and mind your business you fat ugly nerd and he wimped slightly, put his head down, and became silent.

whats meant to be funny?

It surely is. He knows hes a fat ugly nerd and cant do anything about it. He got what was coming to him for getting in your business in the first place.