<human>: The last month has been fairly telling on who I've become friends with. When her and I first started talking (we met at work) we almost instantly clicked. Always talking, texting and started to hang out outside of work as well. I thought for sure this woman was my new best friend. I felt like we connected on a lot of things that I hadn't with any other woman (I usually have guy friends). So this was neat to have someone to girl talk with finally, and I have someone I felt I could trust.

Yet, I had heard rumors at work about the things she had done in her past (which I don't care about) and the way she is around people (basically that she'll put up a front). I ignored all of this because I like to give everyone a chance and try to see the good in everybody. So it's been almost a year, and things have turned ugly.

 I've learned recently about all these lies she has told me. The are not just rumors, the are lies I've caught her in. She also has been putting me down constantly calling me "bitch, "whore", "miserable" etc. This is usually when I don't pay her enough attention. I had posted a few days ago on her about the argument we got in where I was just anxious (I have major anxiety/PTSD) and wasn't feeling well. She proceeded to convince me I was pregnant, making me more anxious instead of stopping when I asked her to. Also, yes she is aware of my condition. 

So over the past few days I've let it sit with me and I really feel this relationship is toxic and I don't want to be friends anymore. Yet we also work together, and we've had an extensive friendship at this point. This is a situation I've never really found myself in and I'm not sure how to handle peacefully. She's already lashed out at me (in front of the whole office) just for not saying "hi" to her 2 days in a row. So this is where my fear lies with ending it.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: I'm in a friendship where I'm being verbally abused and I'm not comfortable being around this person anymore. Does anyone have advice on how to handle this in a *calm/peaceful* matter?