Okay, so here’s your next conversation:
“I’m really sorry you are having allergic reactions to scents.
Did your doctor indicate that the allergy testing revealed other reactions? With Covid and ventilation, you might be at risk.
We really need to talk to the RA because your health may be an issue; later, you may want to contact housing, with your medical records.
I think you might be able to get on the waitlist for special housing. I think that special housing will be more expensive for your parents, but if you’re having reactions in a group setting, especially during Covid, you and your parents will probably want a more isolated setting.”
Put it back on her. If she’s being a witch about it, ask for her medical records. Proof that it is specifically YOUR perfume in the presence of your RA, and BE as sweet as you can be with a very “concerned” expression.