I am sorry to hear about your bad experiance and that you were sick while you were here in Barcelona. I did tell you before you arrived about a games night one of the room mates were having and asked if you wanted to join, and you replied ¨that would be nice, thanks for letting me know ¨ so I didn't expect you to have any probelms with it.
I have spoken to the house mate now and she assures me that no one was overly drunk and it was an innocent games night. She told me a couple of times she turned off the light to your private lounge room of a night as you would leave it on and the light switch is on the outside in the hall way yet she never entered the room (that might of been mistaken for someone trying to get in)
Running out of toilet paper is always an issue in a shared house, when you just book a room. That is why I left tissue paper in both of the bedsides tables for you to use if this ever became a problem.
I would have loved to hear from your during the stay about any of your probelms so I could have fixed them, as we are just around the corner and/or could have contacted our house mate.