Is AUTHOR wrong in the post ? POST : &amp;#x200B;

Im at college in a triple dorm and before moving in we all agreed we would work out the bunking and closet situation once we got there but of course that fell through and as the last one to move in, I was defaulted to top bunk and all the other non-preferential options for desk and closet space. Whatever, I don't really care that much about any of it except for the bunk, which we had agreed would be contentious and require working out. It's a week from the end of the first (fall) quarter, and for the quarter I have been mentioning to my roommate that I would take bottom bunk winter quarter since he just presumed it for fall. Every-time I say it he just says "no, not happening" but I have never been in the mood to argue or really discuss it until now when it's coming down to the wire. Of course when I told him again the reaction was the same but this time I told him I thought it was a more fair compromise than first come first serve tough luck. As far as I can tell his only arguments for not swapping bunks are "life's not always fair", "most people don't switch", and "all my things are set up already" but the only thing on the beds are sheets so I don't think that argument is very legit. I'm even conceding that he can have bottom again in Spring, meaning he'll have the bottom for two quarters and me only one. I really don't understand how I can be in the wrong on this one but that's why I'm asking you guys if it's possible that I am the asshole here. I'm also out of options on how to deal with this because he is saying there's now way he'll leave and if I try to sleep in the bed he'll just get in and sleep with me.  Any advice would be appreciated on how to deal with my spoiled stubborn roommate.