I'm sick of my work colleague, that sums it up. She is higher up than me in terms of job description but she is just nasty and snidey towards me and everyone else that works there. She puts others down just to push herself up and its sad. She's older than most of us and quite friendly with our boss so can't really go to the boss to complain. She generally is only on 1 shift and I dread working with her if I'm on shift with her. I enjoy my job but dread working with her. One day she can be friendly next she is jumping down my throat. I've been on the verge of tears twice because of her.
would I be unreasonable to ask boss not to work with her?