SE, it bums me out that your therapist did something that upset you and your immediate worry is that he will terminate you if you tell him that you're upset. You didn't do anything wrong. At all. I don't know if he would or he wouldn't terminate (although I certainly don't think he should). His ego and need for control seem quite formidable, so I don't know how he would respond if he felt embarrassed by your discovery. I just wonder how much that dynamic gets in the way of your therapy. I don't know how you can balance the fear and awe you seem to feel toward him with your need to be your true, complete self in therapy, with all the potential messiness that can entail.