AITA for cutting my brother and his family off?

I apologize for not giving enough details and being clear. I think it’s the buildup that led to me wanting to distance myself.

A list of the other things she has done over the years include:

• Posting things about me too, especially when my friends decided to surprise me for my birthday at the apartment where I lived with her sister, and she posted about how me and my friends lacked manners for being so noisy. I had no idea they were going to surprise me to begin with.

• Making remarks about how the gifts my parents sent her were not of great quality and that she only wears designer wear

• Asking my parents to give them their room every time they visit our house because it’s the only one with a/c and “they have kids”. My parents are old and my mother’s blood pressure gets high when it’s really hot

/r/AmItheAsshole Thread Parent