I think that you should just be there for her.
She doesn't need your feelings into the mix right now.
I have a friend who perpetually gets mixed up with the "smooth guys" I call them. I can tell that they are not really up to any good but then she seems so happy I don't want to crush that just like you didn't want to crush her spirit. She always goes for the "ass" never the guy that is totally real
then the guy does some asshole thing and I'm hearing the sob story of life. She would get drunk and do stupid shit I finnally wrote her a letter when the time was right showing her that shit and how I cared about her. I was brutely honest.
She later thanked me because she was just messing around with these losers. She thought nobody cared but by me showing her that I did she didn't even care that I told her she totally embarassed herself with this one inncident.
Okay thats going off the topic but totally just be there for her
she will maybe realize that she is really in love with you just like the movies.........
GOOD LUCK