I started a new game and added room mates to my lot. Again I got 7 room mates and had to put in more beds. Things seem to be working alright. I think it's not good to have the room markers with the room mate function.
I think the lock door function is sufficient to keep some areas private. I really wish EA would just do Hotels. Perhaps in the next expansion.
I did have two pea puddles on my lot from room mates who had bladder accidents still, but no passing out. Very annoying to not also be able to ask them to clean. That social supposed to be available but so far it is not initially there.
I am going to go back into my Paris game and try removing he markers to see if that will stop some of the confusion.
I'll post back to give an update.