Well, maybe by the time you go see your old T for a closure session, you may be doing better and have gained weight. You never know. If you can let that help motivate you, then great. If you have lost weight when you see her, then you can use that as a positive--you recognize what you are doing now isn't helping, so you are seeing an ED specialist. You are taking responsibility and trying to get help.

If you do go see your T again, be sure to say at the outset that it will be your last session. I don't think it wise to do "therapy" for half of the session and then tell her you are leaving only towards the end. If you do tell her and then she does try to give you unwanted advice on your ED, you could thank her nicely for her concern ("I know you care, but...") and reassure her that you are seeing a specialist in EDs now and you think her approach will really be helpful, and then say, "but we don't need to talk about that; as I said, this will be our last session and..." and turn the discussion to closure. When my daughter and I ended therapy with our family counselor, we told him fairly early in the session, and he didn't keep trying to do therapy with us, he turned to the closure. Hopefully, your T won't be so dense to keep doing therapy when you are there to tell her good-bye.

You don't have to. You won't be doing therapy anymore with her.

Bluemoon, it sounds like you're looking for reasons to not see your therapist for closure. If you don't want to see her, you don't have to. But yet the way you went and cried outside the window to her office--it seems like closure might be helpful.