Am I an asshole for not telling my brother that my aunt moved in with me?

My brother and I own a mobile home. He lived in it and recently moved to another town and he wanted me to move into it to learn to live by myself. Well the house my aunt was renting had a lot of black mold so it was condemned. So she's been living in a little trailer for the past 2 years. She was miserable. She was sick all the time and her sciatica was very bad to the point she could barely even take a shower so I offered her a room at my house. She accepted the offer pretty much immediately. We are all moved in now. Her sciatica is almost gone and she's not sick anymore. Well, when my brother lived here, he let 2 of his friends move in without asking me. One of them went like 6 months without paying rent and the other one punched a big hole in the wall. He didn't even ask me if they could move in so I kind of feel like I don't need to tell him that our aunt moved in. He's gonna find out eventually because he visits town pretty often and he has to come here to get some of his stuff. I'm really stressing out about it. Before this all happened, my mom said that she mentioned to my brother about our aunt moving in, and he said something like "its my house too and I don't want her living there.

Am I an asshole for not telling my brother that my aunt moved in with me?
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