I moved into an apartment with an acquaintance/coworker that worked at the same location on campus and her friend. We were all university students at the time and generally very respectful of each other. The apartment was a 2bd/2ba, consisting of one master bedroom with the bathroom directly in the room, and another room with a bathroom across a corridor.

I was the first to arrive at the apartment when we first moved in, and therefore had a choice of taking either the master bedroom or the other room for my single (the other two girls would share a double). I wanted to be considerate, so I took the non-master room.

The room I took had the bathroom very conveniently 3 steps across a the hall with a storage closet on one side, and the other side exposed to the living room. I realized that if I hung a little curtain over that opening, I could have an enclosed space for myself where it would be as if the bathroom was connected. I am a nudist at home and don't enjoy wearing clothes, so I thought this was a good idea. The only problem was that the storage closet would be blocked, so I pitched this idea to them: I would have the curtain up, but it'll be parted most of the time. The only time I'll drag it closed is if I need to use the restroom. This is so I don't won't have to put on clothes, walk 3 steps to the bathroom, do my business, come back, and take all my clothes off again. My door will be closed while the curtain is parted, so it'll still be convenient to access the storage closet.

I jumped the gun and bought the curtain first before pitching the idea to them - after I set it up and explained my idea, my coworker's friend was upset and said that it made the living room look uglier/smaller. She said that if I wanted more privacy, I should have just taken the master bedroom in the beginning. (At this point we were all settled in so it would've been a huge hassle to switch). I considered her point, but when I first arrived at the apartment the master bedroom seemed bigger to me, and I thought it'd be nicer for 2 people to share whereas I would have the space all to myself.

I try to avoid conflict if I could so I took down my curtain immediately but this has been something that bothered me for years after it happened.

TL;DR I wanted to set up a curtain in my apartment for extra privacy, but my roommate said it would make the living room look smaller/uglier.

AITA for wanting to do this? WIBTA if I actually did do this?