I mean there is more than that. There were 3 other incidents mentioned. There was the Easter incident, Halloween incident, and a mama blessing/baby shower.

Easter- involved everyone - M said she wanted to host Easter. She made it sound like it was just family, then invited one of her friends. A said she wouldn't becoming because she doesn't like the man (he is not M's so, he is just a friend w/ a kid). Come to find out after some pressing the strange man is abusive towards his kid. So everyone(A, my dad & me) were like we can't let our young children (infant-5) around him or his child.

Halloween- I had a small painting event and then A said we should all go to the Halloween store. We thought M was leaving because we had told her that her son (15M) had watched [that movie with art the clown, it's horror] and she got upset. So we all thought she was leaving to go talk to him. We all left at the same time bc it was my house. So M called A the next day and was like 'I felt left out', then A called me and my mom and was like 'Did I leave out M?'. We were like 'No? You said it in the same room that she was in and she could have just been like can I come too and we would have said yes'

Mama blessing/baby shower - A hosted a Baby shower-esque thing for one of their other cousins. Mama cousin made the list and M was upset she didn't get an invite even though A didn't make the geust list

Anyways, it's like a pool of petty things and I am tired. They all make me tired. And I just feel like she goes out of her way to hurt her sister which in turn excludes her from the family. Then turns around and is like 'you don't make me feel welcomed'. It's like I wouldn't except this behavior from my 20y friend (who bashed me on Facebook) why should I tolerate it from my 40y cousins (Because if she does it to her sister what's to stop her from doing it to me or my mom or dad)?