Strange Girl at work?

Working at my job (gym) is pretty stressful periodically, but when a fellow employee makes it a bit worse, that isn't good. Recently a females co-worker that has been off for her pregnancy returned. Having a month in the job under my belt, i knew nothing about her. Someone told me before-hand that she is a snitch and actually went to wash herself after an African American co-worker touched her in friendly way. I found the story pretty hard to hear, especially the fact she is part African American herself. Being me, i didn't believe the speculation until i saw it for myself. Upon unofficially meeting her, she went to my department and tried to correct me in a rude way in front of a customer, but i let it go because i'm mature. Then when a club member wanted to bring a guest, so he could join, i let the member and his friend in to try out and told them to come back to sign up. She stood there and pestered me about not calling her to make the sale, and then went to tell...continued