She's a Bully, But Only When She's Alone With Me

Dear Experts, I have a co-worker who is a complete B!@#$! However, she is always a total sweetheart when other people are present. It's only when she is completely alone with me that she treats me terribly. She yells at me and calls me incompetent. I don't know what to do. I mentioned it once to a co-worker and she told me I was nuts that everyone loved this girl in the office. We do the same job and I'm guessing she is just threatened by me, but because she's been there longer, I'm guessing even my boss won't believe me. What can I do to get her to stop? It took me a long time to break into my profession and this job is vital to my career goals, but I'm not sure I can hack much more of my co-worker's evilness towards me. Here is how our CAREEREALISM-Approved Experts answered this question on Twitter:Q#356 Love documenting/taping; calmly say, "There's no reason 2 speak 2 me like that. Pls spk 2 me w/respect." (@juliaerickson) Q#356 1. Have u told *her* to stop? 2. Record all incidents & report it. Popularity isn’t a harassment pass! (@resumeservice) Q#356 The CAREEREALISM crew has handled bullying at work before (w/great responses): http://bit.ly/3Cmfhu. (@beneubanks) Q#356 No on bullies w/o UR permission. | Tell her to ensure understanding of project scope U R tape recording ALL convos w/her. (@dawnbugni) Q#356 You may never play the tapes for anyone, but you stop to the way you've allowed her treat you when you're alone. (@dawnbugni) Our Twitter Advice Project (T.A.P.) is no longer an active campaign. To find an answer to the above question, please use the "Search" box in the right-hand column of this website.