She is 19F I am 26F. I just got a computer cause my laptop broke and I want a better system for gaming and school combined so I decided to get a computer instead of a new laptop. I feel like her reaction is overboard, considering I give her a good deal on rent as our parents live across the country (and lowkey suck to live with even though we love them dearly lol!). Rent is 2200 everything included. She pays 700$ for a bedroom and her own full private bathroom attached to her bedroom, so an ensuite I think it’s called. We have a 2bed 2bath. We both are students, we both work part time, but I’ve lived alone since I was 17 and she just moved out from my parents to move in with me a year or so ago so I figured even though we work the same amount (my job is slightly better paying as well) and go to school the same amount, I’d be nice and still give her the benefit of being my little sister and she could only pay 700$, which is also why I’m annoyed at how demanding she asked me to move my computer/go into my room for the night. Anyways, today she comes home and asks if it’s okay a friend comes over. I say yes cause I never care anyways, she doesn’t have to ask and I’ve told her this but she asks anyways to be nice which I do appreciate. She rudely goes “can you not play computer in your room tonight?” (Her bedroom is beside where my built in desk is, the desk is marble built into my apartment so I cannot move it as it is literally a piece of the wall lol and my room has absoloutely no space as I have a 4x3 foot dog kennel for my special needs dog, as well as my bed and two dressers. I already have hardly any walking space.) If she would’ve asked nicely, I would have just gone into my room for the night without my computer (I’ll just watch tv or something) if it bothers her that bad that I am in the living room, even though I always have headphones on and I can’t hear anything.

I’m very quiet, I keep to myself. She is a loud party girl which I am ok with as I don’t mind her friends, they’re nice girls so bringing them over is no issue. I am offended she is upset that “I can hear them through the door if I’m in the living room” even though I have headphones on so I can’t hear anything!!! Anyways, would I be an asshole for keeping my computer where it is, and telling her to deal with it? Maybe if she asks nicer, I can go into my room for the evening when she has fiends over (only usually once a week anyways) but should I demand she ask nicer next time? Or does she have the right to already be annoyed and snappy with me because my computer is in the living room, and this would bug you too?

Remember, we get along very well and always have but sometimes she is SO SNAPPY at me. Only sometimes. I just want to be fair with her, as well as her being fair with me so I’d like a second opinion.

Thanks everyone lol