That all sounds very hard.

I'm not experiencing the same thing but there are certainly similarities in my therapy so I can understand a-lot of your struggle. I also share a lot with my therapist about things I find hurtful yet they are often repeated. I have also been with her a long time and at times feel like she has a wall up that prevents her from really connecting with me. If I sense she is in that space my alarm bells go off and I cannot connect with her either so it's viscous cycle really who even knows which of us puts our wall up first.

You say it's not professional with of him to end therapy but that's not entirely true. I think the therapist would need to look out for the clients best interest so if felt he was no longer helping. Do you talk about all this with him? It sounds like you need to try someone else which I know you likely don't want to hear. I'm also at that point.