Been confiding in her a lot about difficult colleagues and she has always had my back.
There was a mix up where she expected me to be back from a work lunch at a certain time and I was not but I had told the other colleagues but they were not listening and were also wondering where I was. So she ended up leaving the office late. Then when I apologised by text she seemed a bit off and today has barely said a word to me and when I tried explaining what had happened, she didn't say anything, just sort of nodded and walked off. Aibu to say she should be talking to me if there is an issue and not behaving so sullen?