This, in theory, would be called a toxic relationship. A toxic relationship can present in various forms and it is hard to understand why people turn on other people. But, I have learned a hard lesson from this. You can't trust someone fully until you know them and are able to read their actions toward and for you. My dad said that I can "never trust anyone" but I am curious how I could talk to anyone without it coming back to bite me. He said that I have to read and observe before trusting.
That is very hard for me as I am a teacher and a fixer. I don't like seeing people in pain or in wrong. However, in order for me to move forward, I can't fix the world.
Moving forward, for my job, would mean getting out of my present school and starting fresh next year. To do that, I need the recommendation for a position next year. So, I am sticking it out, keeping to myself, and just doing my job the best I know how.
It's not my ideal mindset but it's something I have to do in order to succeed in my current area.