This may sound harsh in relation to your T, but this is how I see it. Your T is being unprofessional in her comments and bordering on committing malpractice. To tell a client that their sexual orientation is the way it is because of their relationship with their mother is awful. Any professional organization, be it psychologists, social workers, counselors etc. would find her behavior abhorrent. Ones sexual orientation is not related to a history of abuse or attachment experience or any such thing. For a T to say this makes my blood boil. Whether it is homophobia or ignorance, it doesn't matter, it is inappropriate. I hope that you were able to work and get some benefit from seeing her, but I'm so sorry you are having to go through this period of confusion because of this T. You deserved better.