My T is very trauma informed but in a different way than other trauma T’s I have worked with because he doesn’t specialize in trauma. Personally this works far better for me. Anyway, it sounds like maybe you are fairly new to this T or just starting to move deeper into your work with them. Honestly, I can see my T saying something similar to what your T said. He wouldn’t mean to be dismissive but until he knew me better he wouldn’t want to make a big deal of it or draw too much attention to it. So his biggest concern would be that I seemed to have “come back” before I left the office and that I would keep coming to therapy. He would be a little concerned that because I had triggered I might feel to scared or ashamed to return and then he can’t help. Now that he knows me better he still doesn’t draw a lot of attention to my dissociative episodes but we have a good enough understanding of eachother for him to know if he needs to help bring me back, if he needs to let me stay there for a bit or if I am finding my way back on my own. Once I am back we will talk about it if there is enough time left in the session. This past week I dissociated differently than usual and he could tell I was calm so he let me be. When I came back he made sure I was OK, and would be in session next week but there wasn’t time to process it.