Corethree interview questions

This is an example of how one person can ruin the image of a company. I had really good interviews, everyone was friendly and left a good impression. After three interviews, I waited for the feedback. I was told a decision will be made in a day or half. When 4 days after the final interview I was told that I wasn't selected. As I didn't receive any feedback from my agent despite asking. I called the talent partner and asked her if she could give me feedback as I thought everything went perfect. And also it will help me apply for the next role. She said she will come back to me, which never happened. Instead she called the agent and told him that I dissed him, that I was very angry and she had to calm me down and I was unprofessional and that's why they are not offering me a job. It was so shocking as i am in the industry for 15 years, I know it's not up to the talent partner to select and its part of the process the best candidate gets hired. You improve yourself for the next one. I was very polite when I called and told her that I was only interested in the feedback as it will help me with future interviews. But what happened next is so strange that I am lost for words, the whole experience has affected me a lot as I can't get this out of my head. I was polite and professional throughout and all I did was request feedback that can help me in the future. How dare I call and ask for feedback for the interviews, I spent a week preparing and kept stressing about. Talent partners are the face of the company and help attract great talent. I am still trying to understand why I was treated as such.