Jaded,
To echo what everyone else has said, she needs time. When I found out that Marco was trans, I probably was acting kind of trippy to him. Mind you, at the time he was presenting as female, although masculine, and we were best 'girl' friends. I told him that no matter what he told me, it wasn't going to make me not want to be his friend, yadda yadda, but in actuality, I couldn't get it off my mind. But also, at that point was when I started to see Marco for who he really is and fell in love with him. It may sound corny, but he and I talk about how we came together, and we really do believe that we are soul mates.
Give your friend time. If your friendship, or any other kind of relationship with her is meant to be, then it will happen when it needs to happen. There are all kinds of circumstances that we can't always see at the moment, that just need time to work out. Don't try to push the issue, but just let her know that you are there to answer any questions she may have. First and foremost, be honest with her and things will work out for the best.
Like Taylor said, it takes a tremendous amount of courage to do what you did! Keep your courage up.
Marco and I are really looking forward to meetin you in October!!
Take care,
Pam