I can understand you feeling upset. I suspect I would have the same feelings in your situation.

That said, I don't think your T has said anything wrong as such, but definite overkill. It sounds like she reacted out of her own feelings/needs when she said 'I'm not gay'. Something in her needed to be sure you knew that. I can see why that has offended you. She didnt have to say that. And in doing so, she has hurt your sense of knowing you're a moral person who respects her boundaries and the need for her to be aware of it too. I like to think I'm a respectful person when it comes to boundaries in T's office and any sort of overreaction would hurt me too.

I'm glad you're planning to talk to T about it. I'm sure she will realise her mistake. She sounds a good, ethical T. She reacted out of her needs and it isn't any reflection on you.