Massachusetts

If the person doesn't speak up and say "Take that shit elsewhere" then they are giving tacit consent to the conduct. People will get away with what they can get away with--it's human nature.

The roommate should have gone in the room and turned on her favorite CD of Sousa marches, or perhaps watched Alvin and the Chipmunks on television while ostentatiously video-conferencing with a friend, remarking about the rudeness/inappropriate conduct of the horny roomate and turning the camera on them, or something. I'll bet the lovebirds would have found another place to perch, if that were the case.

Two can make life miserable--it's not just all on one person. I also suspect a bit of this story might possibly be "perception" on the part of the offended party.

I should think a roommate who knocks, and who gives a bit of privacy, would be a gem to be treasured.