Wow. To me, that is a totally unacceptable answer. I really think she owes you more of an explanation than that...it just feels so disrespectful of the trust and the relationship that you have built with her to give you such a vague non-answer. I'm really sorry, I know that has to hurt

I did have something similar happen recently with a T who I call my "Teacher T" who was working with me on meditation/spirituality/energy work. She encouraged me to e-mail and open up, and then suddenly completely changed her response to me, rarely e-mailing back and pretty much shutting me out. She never explained her reasoning to me, but she explained it to my T (she felt like she was crossing a boundary into a therapeutic relationship instead of mentor/guide/teacher). It REALLY hurt, and left me totally blaming myself until I finally got an explanation through T what was going on. So I think I know a little bit of what you are going through. For me, though, I still have my T. To have your T pull something like that is just terrible

Do you want to go and talk to her about it and see if she will explain more about what is going on? Do you feel like there is something that can be salvaged? Once some time passed, I realized I still might be able to work with my Teacher T...I'm not sure, but it is a possibility (at first, I thought there was NO WAY I would ever see her again)

You've put so much work into this relationship....3 years is a long time...I feel like your T owes you and explanation and an apology.