Aw, I'm sorry you had to go through that... but, do they even know about your emet? I am just moving out of my parents house for the first time (am 18 and on my own, D: wish me luck!). My two new roommates (both older guys), are normal, dirty boys.However, I have sat down with them both and explained that I have an irrational fear, that I am getting help, and to please be supportive. They understood that things upset me (they didn't understand the fear at all, which is to be expected), and things are pretty good so far. They both help clean (with bleach and other pre-approved stuff by me!), especially bathrooms. I am still very iffy on dishes, because our dishwasher does not dry, and if the stuff is left to air-dry there are water spots and it looks very dirty. But I ALWAYS re-wash stuff, but they understand. I'm also a freak about what's in the fridge and exp. dates, but I've cried and panicked so much that they kinda know what bothers me and what we all can do to help avoid attacks.
Anyway it goes, I hope it gets better. From your tone, it sounds like those girls are a bunch of airheads!!