Hi I am the youngest sibling out of four (15 years old), giving that one older sister who's nearly an adult, + two older brothers who recently moved out this past summer. Recently I've been talking to my mom more, and just having a good old rant about how I'm feeling in that moment. My sister doesn't date much, but when she's does they're serious relationships...Ever since her and her current bf got together she's been acting different. Like acting different as in staying in her room all day not socializing with our family at all..Also.. ever since she and him got together,..she just isn't herself. I cant go into her room to talk to her for a few mins without her making a huge ordeal of it. It's to the point where I don't even like being around her because she's turning into one of those preppy girls at school who I can't stand to be around. She judges me on literally everything and talks to me as if she's right 99.9% of the time..(which gets annoying and causes me to not want to be around her at all..) Any advice on how to maybe try and talk to her about it? Please please let me know because this is not normal for us, ever since I can remember she's been like a best friend to me My sister is like my go to person for everything in my life, and these past few months she's been shutting me out and honestly it is scaring me that he's gonna change her and her personality..Let's just say I am very dysfunctional right now because my person is no longer my person (as Meredith Grey would put it)..