hey ... well..
It sounds pretty legit of her to say that she is worried about losing you as a friend .. its hard as you know.. but..!
It also sounds like she is willing to find out. I would bring it up to her with all the reasons why the two of you should be a couple rather then friends.. I would also stress that you dont want to lose her as friend too but its obvious to you that what you have is deeper then friendship.
Dating a friend is tuff.. remember there is always a chance of never being he significate other or being her friend... weight them both and figure out what you can live with. Good Luck!
"Remember always, that you not only have the right to be an individual, you have an obligation to be one."
- - Eleanor Roosevelt
" It's not who we are that holds us back, it's who we think we're not."
- - Michael Nolan
"...to love and lose, is better than not to love at all..." .... Lord, whats his name....
" The world is big... I want to see all of it before it gets dark." -- John Muir