I also don't think you owe this guy an apology. There is no excuse for a T to say "And you think you're not?" It is mean and belittling.

I don't believe that therapy is for everyone, but that is not because some are treatment resistant. There are people for whom therapy makes things worse, and also a lot of people for whom therapy makes things worse for a long time until they get better. The thing is, it is hard to know if that will be you.

You could try a woman-I do find that the sex of the T makes a difference for me, along with other attributes. But whether or not that is useful, whether or not you even decide to do it-you still deserve to be treated with respect.