I'm not happy with the fact that she followed you. Just how invested are you in this T? If you are very invested, I would hash it out. I feel like I am going to puke when I am triggered as well. And My T would NEVER say that she would get mad at me.
BUT if you are there because of eating disorder alone, than perhaps I am out of line. It sounds more like your food disorders are more of a symptom of something bigger. Oh and do you have a lot of outings with your T?