I'm really sorry to hear that, especially as I recall you mostly had a good relationship with your T. I think different Ts with different styles will naturally react differently when faced with those kinds of emotions. I too wouldn't find it particularly useful to hear that it is 'good' to feel the sad feelings. What is her modality? Do you feel you were getting enough positives from therapy that this rupture is resolvable or do you think it is definitely time to search for a new T?

" I think I somehow wanted to explore what these feelings meant and how they might relate to my current feelings."

Did you express this? If so what response did you get?