Some of the meetings I go to have a very useful policy. We are asked to speak from our own experience and not generalize or try to impose our experiences on other people.
People I consider to be good friends do the same.
I had an acquaintance (not a friend) who was really getting pushy with me about ways I could--and should--masculinize without T or surgery. I had had enough and was on the verge of cutting off all communication. But first I made it quite clear that this person didn't know what I needed--only I knew what I needed. And I needed to transition medically. That firmness did the trick.
Of course, we are both of <ahem> mature years. That probably makes a difference.
But seriously, this friend of yours really has no business assuming that she knows what is going on inside your head. In my book, her behavior is bloody presumptuous. If she has any respect for you at all, she will realize her mistake and back down once you make it clear that she has crossed the line. Maybe she'll even learn something. Or maybe not. Some don't.
And don't feel that you are obligated to explain your reasons to her. It doesn't work for everyone, but I never felt the need to try to justify my actions to other people. It's my life, my decision. Not theirs.
Oh, and let me just say that your avatar pic is very attractive (I'm trying not to be too creepy here, since I'm old enough to be your father), and I'll bet you'll be one helluva good-looking guy post-transition.
