Joys of Dorm Room shopping

Ok so, college dorm shopping this morning..and I was just starting to get used to the idea of not having to buy a ton of things because she had a traditional dorm (two in a room, bathroom down the hall). Well...she got an email saying she now has the apartment style dorms...wonderful for her...$$ for me. Her original idea of "I dont need anything" is now sounding like this "But it is what I want" - I about blew up on her over a duvet cover she "had" to have and no she did not get it. What the hell is a duvet cover? I thought it was a cover for a comforter or something...if so, how impractical for her!! I can't spend $25 on that and then $25 on a comforter because "It is what I want" - OY VEY