About a month ago I felt like I was struggling with some parts of my job (an administrative assistant at a therapy office), so I reached out to my boss about it. She was glad to help me out and we worked on some areas of improvement, which was finalized today in our monthly meeting. Near the end of the meeting I asked about my coworker who works at the desk next to me, since they seemed to be giving me the cold shoulder the entire week and I was wondering what was up. She suggested to email them about it, which I thought was a good idea since it would keep things private between us.
I send the email, she prints it out, and shows it to our boss. Our boss comes to a free desk and my coworker sits down. She said regarding my email, yeah she has been ignoring me since she is fed up with me not doing my job and constantly acting like I don't care. My boss was sitting right there, along with another uninvolved coworker. She is no longer interested in doing small talk, because I make coming to work much worse for her, and she doesen't enjoy it as much anymore. I even told her that this isn't objective this is just being rude, and she said she is not interested in being objective. I don't know if she didn't understand what she was saying, or she really meant that.
This came as a huge shock to me. For the past 8 months I have been coming to work trying hard and always ready to improve, and my boss and I have had many meetings on how to constantly get better. There is no way that I don't care. I'm doing my job surely, since what else would I be doing the past couple months? I believed I worked hard every day. I always keep busy. To hear her berate me like this in a public setting, when I just wanted to keep it private, leaves me feeling lost. I wonder if the rest of the office thinks this about me, and where do I go from here. I dread going in on Monday morning, as this animosity between us has reached that boiling point. I no longer feel appreciated or valued. My boss said it was a good conversation to have since my coworker could share her side. If I defended myself, it was met with "you may think you're doing well, but you're not" which just makes me feel insignificant.
How am I supposed to move forward from this? All I have been doing for the past few months is working and trying to improve every day. Now I feel berated in front of my coworkers and my boss, and she just allowed it to happen.