I lived in a co-ed dorm for 3 years. The rooms were staggered...male, female, male, female, etc.
For the most part, the relationships where often similar to a sibling relationship—not what I had expected when I moved in. Of course there was some hanky-panky but not as much as you’d expect.
Of course, that was much different than having us actually share a room.
I found that too. After a month of seeing the same women day after day in their sweat pants and at the vending machine....well...it ain’t exactly the Playboy Mansion.