Hi Sierrah,
I feel for you. I have endured a similar situation with an elderly co-worker (71 years old!) who is very passive aggressive, though, so she never calls me things like that to my face. She does, however, carry on about me when I’m not there and has made herself a nuisance to my boss and co-workers because of it. My boss has even apologized to me because she feels badly that it happens, and believes it is undeserved. She has also personally thanked me for never giving in to the nastiness and back stabbing out of respect for this woman’s age.
It’s verrrrrry hard, I know. I suggest you pray to that co-worker’s guardian angel and ask the angel to inspire that person to stop it, or at least look for peace. Pray also to St. Joseph to help you, as he is the patron saint of workers.
However, on a professional level, this is not only unacceptable, but in most places, grounds for dismissal. I would talk to your supervisor IMMEDIATELY. Better yet, go to HR. File a grievance and ask for HR to follow through to a resolution. No one deserves this, NO ONE!!! I can understand you not wanting to make waves (been there, too) but you HAVE to be proactive about this. It will NOT go away. She sounds like an idiot, to be honest, to think she can carry on like that at work.
Please, pursue a resolution through official channels. Once you bring this to the attention of your boss and/or HR, they are obliged by law (I think) to resolve it.
Good luck, I’ll pray for you! Keep us posted!