I think I am in a similar situation as I have relied on a person too heavily for support in my depression and over burdened that person and now this person has turned on me. To make matters worse I work with this person and she has now been made my supervisor so to speak so I just try to be cool with her and avoid her. It is awkward. I understand the position you are in. There is not much you can do but to stay quiet, be polite and pleasant as possible and hold your head high. Then come on here and talk to us about it. We understand. It is hard and it hurts. Life is tough and we always need someone we can talk to. Unfortunately, we sometimes by mistake reach out to the wrong people. It happens to the best of us. Hang in there.