I don't think you are obligated to apologize if you don't want to. It's not the client's job to validate the therapist. Full stop. Frankly, I think it's weird that your pdoc got bent out of shape by such mild criticism. I have said much worse in the heat of anger and had my T respond with empathy and curiosity about my strong reaction, rather than defensiveness. I think your point about the apocalypse is rather astute, and I wish he had gone there with you rather than pivoted to his own feelings. My T will talk about her feelings and her reaction to how I am with her (which I encourage and find really helpful), but she will never do it in the heat of the moment (if she's feeling stung or whatever), and she only shares things she is fairly confident will be directly helpful to me. I think your pdoc has a strong need for admiration that he should get met elsewhere.