I (20f) study in the UK. I'm in my 2nd year and I share a flat with 3 other girls, all 19/20. If you're not from the UK, unis here start now-ish, and the 1st week in which everyone moves into uni is called 'freshers', most people party & get drunk, etc. It's basically a get to know people week, or a catch up with people week.
2 of my roommates are really nice and we get on well. We've spent freshers week mostly chilling in the flat, drinking and watching Netflix. We went out 2 nights clubbing, but both nights we crashed at a friends house to avoid causing commotion in the halls. The point is, we've been mostly quiet and respectful of others as we know that not everyone is into it. We have been drinking and staying up late chatting, but no loud music or anything.
Our other roommate is not so nice. She was well-known on campus last year because she has a small social media following (think about 8k) and is a bit different to most 20 year olds. She dresses very old fashioned, holds very old fashioned values (does not drink, no boys in the flat, no staying up past 10pm, locks herself in her room most of the time) and is basically very judgemental. When I was unpacking the food I brought to uni in the kitchen, she was fine with me until she saw a bottle of vodka, before shutting off and going to her room. She also acts very childish.
The first full day, she came and said "I'm vegan, so don't ever touch my stuff". I'm vegan too, so I understand the rule, but the way she said it was very rude. That night, we were drinking and watching Friends, it was 11pm, she came in and asked us to turn the TV off because she was trying to sleep. We agreed, because we didn't want to fight. The next day, one of our friends showed us her IG story, in which she recorded the noise we were making and shook her head, rolled her eyes. It was just really pathetic. I was pissed off with her, but still just didn't want a fight.
The final straw was that, when walking past her room, her door was open and on the floor I could see she had a big box of snacks out that she was keeping in there. There were open packets of biscuits, and bread products. I was shook thinking about the mice that could come in, our flats have had a mice issue before. I knocked on her door and said that she should move that into the kitchen, and she said "I can do what I want in my own home, thank you." and shut the door. I was mad. I opened her door and said "you can do what you want, but we can't stay up past 11pm in our own house? maybe if you can't stand adults, you should live on your own." She slammed the door.
I think she is going to be a problem. Because she is well known, I know she lived alone last year so I don't get why she'd choose to move in with people she doesn't know if she is banking on people being like her. I feel like an asshole because, even though I think she's wrong too, I could have been more accommodating. Maybe we could have tried to hang out with her or something. AITA?