(((Canders)))
It sounds to me like your T is very caring and you and he have a really meaningiful relationship. I can relate to the hurt, it sucks. I can also understand having to stay a little extra until you are in a better place emotionally. That has happened to me as well. I have "spaced out" and become anxious during session and my T has said the same as yours did, and he asked me what the trigger was in our conversation.
Be good to yourself. Keep feeling even though it hurts. You wll come through the other side.