Now going back and reading what happened, I actually don't think your therapist was out of line. (Maybe I'm a weird one.) Unless you are in psychoanalysis - in which case, your T completely f-ed up by telling you anything personal.

But, if you are not doing strict psychoanalysis, then I think your T is absolutely in the right to say that there are boundaries about what can be said. And I say this with total understanding on your part, I really do, because my long-term T told me there was a possibility of him leaving (and then he did in fact move), and after he told me that, all hell broke loose. I crossed similar boundaries! (I actually threw things and kicked his wall until I left a mark and SI-ed in the session while he wasn't looking. I said a LOT of things, and he said that I was attacking him too.)

now, my termination was handled awfully, so I won't go into how it was handled -- but, my current T now has certainly stated that there are boundaries in that room with him.

That said -- I think you've every right to express your feelings -- but...it's your therapist's JOB to enforce boundaries...and that's what she did. And your reaction to those boundaries being enforced would be a really good thing to look at in your therapy.