<unlurks> Hi there! Used to be active here like a decade ago. I happened on this thread... For crying out loud, just contact that friend and tell her you are trans (do not elaborate - you don't know and she won't care) but are still very much in the closet. She's not going to out you, and you'll spare her the worry that you might be cheating on a relationship or whatever. Maybe you check in with her later about your whole trans thing and maybe not. But for now, come clean and trust that any LGBT person who considers you a friend is going to do the right thing.

</lurks, with a quick wave to my friends here from the Jurassic era>