u/Babiigiirl555

I 33F allowed my sister 33F, my nephew 8M , and her partner to move in with me after they became homeless. My sister often disappears and leaves my nephew with me for extended periods of time without asking me to watch him just expecting me to do so because I am in the house. On several occasions this has been an inconvenience to me and when I call her to say something she just says leave him in the house alone he will be fine. However, I am uncomfortable doing this I think 8 is too young to be left in the house alone and if anything were to happen to him I’d be devastated. Me and my sister are twins and my nephew is like the closest thing I have to a son l. We are very close, I love him to death and I’d truly do anything for him but my sister takes advantage of this and the fact that I’m a homebody. This weekend for example she asked me if I could watch my nephew Friday after I got off from work I said okay not realizing that she was going out of town on Thursday and he had no school on Friday so she expected me to leave him at home alone all day while I was at work. I ended up bringing him to work with me she came back Saturday morning but still ended up watching my nephew most of the weekend. Sunday I told my nephew to clean up the mess he had in the living room I asked him twice but I did get upset the second time and told him if he can’t clean up when I asked then don’t ask me for things like robux. I went to my garage and when I came back he wasn’t in the house so I called my sister and she said she had him I explained to her that when he comes home he needs to clean up the mess I already asked him to clean up twice and still wasn’t cleaned and she needs to talk to him about listening. She got mad and said well he was with you when he made the mess so don’t call me with no BS you should have made him clean it up and hung up. So I cleaned the mess and took my TV out of the living room so there would no longer be a reason to be there making a mess. Problem solved. But my sister came home tried to take the TV back out of my room and accused me of treating her son bad. Mind you my nephew is 8 with his own room where he has his own TV, Xbox, and custom PC all that I have provided for him. So not being in the living room might be inconvenient but not really much of a punishment. Me and my sister got into an argument she started screaming still insisting that I was mistreating my nephew and she’s not responsible for anything he does while he’s with me. I told her he wasn’t with me he was essentially here watching himself because you didn’t ask me to watch him beyond Friday. The argument stopped when my nephew started crying because of the yelling and my sister left out the house. I spoke to my nephew apologized for upsetting him and explains why is actions upset me. I assured him that he wasn’t safe and also explained that I was trying to teach him responsibility because he’s growing into a young man and I want him to be prepared for the future. He wasn’t still upset when I left him but he started to calm down and stated that he understood. So am I the ass hole?