My (F19) roommate (M19) has been letting a homeless man live in our dorm for the past month.

I’ve been living with my current roommates both M19 in a coed dorm for about the past 5 months since school started. About a month ago my one roommate, (dark blue in the messages) has been bringing around this homeless man (orange), to our dorm and now the homeless man just stays at our dorm 24/7. My other roommate (turquoise) and I talked about it a lot and genuinely feel scared that he’s there. Not only that, but dark blue & orange are extremely loud when they have sex and it’s disgusting to have to listen to every night. We tried to talk to dark blue about it every night since it’s happened but he’s always busy so we had to resort to texting. I know I’ve said some messed up stuff but I think dark blue is also at fault. What do you think?