But to get any satisfaction out of your question, you still have to raise the subject with your T as she is the only one that would be in that relationship with you to be able to answer/give you the sort of response you would like?

If you are not going to kill yourself, you can make that very clear and explore how your T feels about you, if that is what you are looking for, or skip the suicide discussion if you are not worried about/interested in committing it and go straight into discussing, "I really feel empty and alone all the time" and see what you can learn from that.