I've observed that I'm fine with groups of people and loudness if I'm prepared. Like if I go to a party I expect it to be loud and I'm ok. But if a party randomly starts I get angry frustrated and uncomfortable. So this person stayed at my place and I thought my roommate knew and didn't tell me so I talked to her about it. She asked yesterday if it was ok if he stayed and I said yeah. And she was like are you sure I can tell them to find some place else. And I was like I'm fine with people staying over if I know in advance. I like to know what the environment is going to be ahead of time. I do prefer quiet