I need some advice

[Aoi Magi]

C'mon, we are fellow atheists, we are considered weird and creepy and perhaps even crazy by the majority of the population (religious). You should already know how this works, the folks at your office aren't going to do much and you might even get some "looks" from your colleagues. Your best solution is trying to ignore it, and instead of asking other people, try confronting the problem in the face. Talk to that woman in front of the same group, be polite and respectful, and ask her why she is being mean to you even when you have nothing against her. Tell her that your condition is not your choice, and if she still feels that you are a bad person, ask her to help you in approaching your boss or the person in charge to get a better sitting arrangement where she would feel more comfortable.