Burner acc as I know people I talk about on this story are on reddit. For some backstory, I grew up right outside of NYC and attended a school in NYC. I befriended a guy who went to nearby school my freshman year, and we were quite close throughout highschool. We stayed close but talked less throughout college and after he dropped out of it, and since I moved to teach in Vienna we only chat about once every two weeks. We just happen to live to very different lives, but I still consider him one of my closest friends, and my parents still know him as almost a son, he was over at our house so much as a teen. Now my little sister was 4-8 years old during this time and I’m sure she can’t really remember him, mostly because I was an angsty teen who never wanted to hang out with her little sister, and that she never really saw us together after high school. Now, a few months ago, I, 27F was invited to go along with my mom, dad and little sister 17F on a vacation during my sisters school break. I took time off work and accepted, first flying from Vienna (where I currently live and work) to New York (where my family lives and where I grew up), then flying to Florida. I would like to add, I flew to the US on my own dime, and my parents paid for the ticket to florida and back and the hotel room. This is relevant later. The few days I spent back home were lovely, I really did miss it, and so was the travel day down south. However, on the first night, everything went to shit. The room arrangement was two rooms with a king in each, so my parents took one room and me and my sister took the other. Nighttime went fine, we didn’t bother each other and I was quick to fall asleep. However, I woke up around an hour or two later for some reason, and my sister was still up, reading something on her phone. Half asleep and a little nosy, I admit I did read what was on her screen. And I have never felt sicker than in that moment. Now, I’ve know and have known that my friend is content creator. I was there when he actually started taking it seriously, when he dropped out of college for it, and I am aware of how successful he is, and I am very proud of him for that. However, I do not engage very much with his content, it gives me a weird sense of disconnect that I can’t say I particularly enjoy. On occasion when he makes a project he’s really proud of that he’s sort of worried about posting as it deviates from his usual content, I do pop in and watch. The comments on those videos were always great and normal, which with the knowledge I have of his fanbase now, I understand is NOT the case. His fanbase is mostly evil middle schoolers and scarily obsessive fangirls. What I didn’t expect though, is that my sister would be one of the aforementioned fangirls. She was reading a let’s just not PG fanfiction about MY FRIEND. I immediately got up and snatched her phone while yelling at her, saying stuff like “What is wrong with you?” “Are you being serious?” Etc, sort of in disbelief. I tried to look at what she was doing, but only caught her username before she took the phone back and started crying. My parents heard the commotion and came to our room. I, albeit probably not in the best way, explained what she was reading and who she was reading it about. I know it embarrassed her, but honestly she should be embarrassed. When she found out that the entire family knew the guy she seemed more guilty than confused, but that may have just been my perception altered by anger obviously. My parents took her out of the room as I fumed, and my father re entered a bit later and told me we’d be sharing a room for the night. Room service brought a cot, all was well, but I genuinely couldn’t sleep I felt so grossed out. The next morning my sister was still locked in the other room and my parents asked me to have a conversation with them. My mother then threw a curveball at me. She explained first that my sister had no idea who he was, but then pivoted to the craziest excuse I’ve ever heard. She told me they were sure my sister was autistic, and that my friend was her special interest. The weird thing about that is that both me and my sister have been tested for autism, and I was diagnosed. She was not. I understand how all consuming special interests are, I have never been normal about the Beatles once, but this isn’t a special interest. I am no doctor, just a history teacher, so I really don’t have the qualifications to say this, but this girl exhibits zero autistic traits and never has. Granted, I’ve been living mostly away from home since I was 18 so I miss a lot, but summers and times I’ve seen them since only back up my statement. As well as the professionals opinion. It felt really odd that my parents would say that as I did confirm directly after that she had not been formally diagnosed. It made me incredibly uncomfortable, but I sighed and agreed to let it go because if she really didn’t know, we were all teenagers once or something like that. The rest of the day was uncomfortable but manageable, but my sister still slept in the other room that night. Now here’s where everything took a turn for the worst. My curiosity got the better of me and I looked up her username on tumblr, and was met with a very active blog. I was incredibly uncomfortable finding out that she not only read, but WROTE, but then I found the worst post on the blog. A direct copy paste is “my biggest flex is that my sister is friends with [name]. was the last time i interacted with him when i was like 9? yes. do i gaf? no. we are basically married and in love”. I work my father up, showed him the post, and stormed to my mother and sisters room and woke my mother to show her. My sister immediately started yelling at me, telling me I invaded her privacy, and I called her some things I for sure shouldn’t have, and it turned into my parents and I fighting. My mother started accusing me of just coming on the vacation because it was free, and I argued badk that my flights abroad were significantly more expensive than the tickets to Florida, and it escalated fron there. The night ended with my sister in tears, and my mother yelling at me as I packed my suitcase and left. I’m writing this in the Fort. Myers airport at midnight and I just don’t know what to do. I am repulsed by my family. I know it’s such a weird situation, but any and all advice is appreciated