I just want to say that my parents past away 3 and 5 years ago so it's just me and my sister. Also my sister is older than me and I don't know if it's relevant but she has high functioning autism.
I moved in with my sister and her 3 kids in the first week of January because my previous flat and flatmates were becoming a bit too much. I have been looking at new flats but they are either too expensive or too far out of the area for work. I buy my own food, laundry, I do my own laundry, cooking and cleaning and babysit for free for my sister. I give her money every month to go towards bills and that. Whenever I go to the shops I offer to get things for my sister so she doesn't have to go out. Something she doesn't offer to me. My sister is quite stingy with money. She buys a takeaway for herself and sometimes for the kids. She doesn't ask me if I want anything which I'm okay with.
Yesterday I finished a 15 hour shift and was shattered so on the way home I decided to get a takeaway. Nothing fancy just some chips, burger and a drink. I was very quiet when I got in so I didn't wake anyone. I assumed everyone was asleep but then my kitchen came to the kitchen. I greeted her and she asks if j got her anything. I said that I didn't because it was just a last minute thing and assumed she would be asleep. She looked angry and said I should have asked her before going upstairs. I didn't think too much of it so once I finished eating I went upstairs. I didn't leave any mess to clean up.
This morning I woke up a bit later and saw a long paragraph text message from my sister saying I was selfish and didn't think about other people and need to do better and more. I was quite shocked by it because I didn't think it was that big of a deal. I didn't reply because I had another shift today (and I didn't know how to reply) so I had to get ready for it and when I went downstairs no one was around so I went to work. I just kept having that text message play on my mind and a few hours later I got another message from my sister saying she was disappointed in me because I didn't reply. I was getting upset land a work colleague asked if I was okay and I explained to him about what had happened. He said my sister was out of line and I didn't do anything wrong. He spoke to his wife and they offered to let me stay with them for a few days which I did accept. I had things like my phone, charger, purse and bank cards and my work colleague's wife offered some clothing and toiletries if I need them which I thanked her for.
My sister can be overwhelmed at times and has been known to lash out but I haven't had this kind of reaction from her before. I know I can't avoid her forever but atm I don't know what to expect or what to do. Sorry for any grammer mistakes! My mind is racing as I'm typing.