
How often do you see him, I think whenever you get the chance you should let her know that you don’t want him over all the time. As for separate rooms, that’s kinda the tricky part, it’s one thing if he is in the shared spaces such as kitchen and living room but if he is only in her room and not being a bother to you then i think her having him over shouldn’t be an issue. She should ask more if that would help
Our walls are really thin so whenever they are in her room and I’m in the common area I can hear them talking which isn’t horrible and I can get over that, it’s just more like in the morning when I just woke up and I’m trying to get breakfast and he’s in our kitchen cooking. Or when I’m trying to sleep and they are cooking and I can hear them loud and clear. Like he’s not paying to live here and it’s not cheap