You'll be okay as long as you don't come into contact with any v* and/or put your hands in your mouth/nose without washing them. Are you sure she had a virus though? It could also have been food poisoning or something else. Many things trigger the types of things that set off our phobia but they all aren't necessarily contagious.

I know if I was in your situation I'd be freaking out WAY worse than you are, so you deserve recognition for that! Though you should be fine sleeping in your own room, I would choose to sleep in my boyfriend's room only because I would be having panic attacks all night. Hope that helps!