Though I almost never lean towards a client educating a therapist, it sounds like she could use some experience and knowledge about homosexuality (there, I said it
Rather than spend you session time educating her, you might suggest she do some reading or attending training in this area to bring her up to speed since orientation (while not an issue at this point) will probably be coming up as you continue your healing. There is a book written in the last year or so that is by a gay therapist to help straight therapists understand their gay clients better. I can't recall the title or the author but I think it was reviewed in the MS newsletter in the past year.
If you're really curious about the book, contact Murray Schane, the newsletter editor. He may know.