Odga, S l o w l y... stay the course. Keep doing what is obviously working. Don't jump in... NO expectations. I can see from your post you think this is IT. Hopefully, it is, but NO expectations. I don't want to see my friend hurt, again. I don't want to be a wet noodle, either. Just take it s l o w l y. Continue with doing what is working. Let her lead. Go with the flow.
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.