Mrs R,
I truly feel for your situation as I've known some folks who suffer horribly from this. Going out for a bite to eat or a movie could sometimes prove quite the challenge...I've walked out on far more movies than I care to think about. We eventually caught them on video anyway.
However, I work with a woman who 'claims' to have a fragrance allergy, yet sits at her desk wearing the most fragrant products one can imagine. Her desk is covered with items from Bath & Body Works and Victoria's Secret, yet she complains that what others wear makes her ill. She's one of those who always claims to be suffering from some ailment or another, basically to keep from staying at work. This particularly troublesome co-worker one day accused a lady in our office of wearing fragrances just to upset her. When she mentioned to the PTC (particularly troublesome co-worker) that she oftened smelled fragrances on her, she replied that she was only allergic to what every one else wore. LOL!
Just re-reading this post and I want to make it clear that I'm certainly not accusing you of doing this. Fragrance allergies can be downright debilitating, as the links below attest.
Honestly, I think we would all be far better off if we each did our best to be considerate of others at every opportunity. Sounds like that's what your co-workers have done and I commend them for their efforts.
http://www.noevalleyvoice.com/1997/October/fragrnc.html
http://www.accessnewage.com/articles/health/chemical.htm
Best wishes to you Mrs R!
Brian