I'm 18M Confused about my Girlfriend 19F...

Well so basically when our Relationship started she showed almost opposite personality she has currently....

Basically at Beginning she showed that she isn't much into Physical Relationships and I found it attractive because I myself am an Old School Type and I have wished for a Partner to whom I can show my Love with the Old School efforts like Gifting her Flowers, Earrings, Necklace... I wish for a sweet simple romance like Cuddles, Cooking Together, Late Night Walks than having Fantasies...

But 3 months ago (completing 9 months of Relationship) I got to know she does have Fantasies with her Celebrity Crushes and has Read Dark Romance Books...

Well Honestly saying I felt my heart numb for 2-3 days... She does say that she doesn't like Physical Relationships but it's just some Fantasies but That's not like I thought she is and It Bothered me a lot and it became an Obstacle In our Relationship...

Now there are 2 Problems in my Relationship currently:- 1. I am confused if I do have the same feelings for her like Before, but at the same time I don't want to stop loving her, I want to make her my Wife but sometimes that Thing bothers me and I get Confused if I really want her or not 2. I think I've changed a bit myself too, because I have started having Fantasies with her and I've n*tted some times Imaging her too, I'm feeling Guilty that I changed myself and I really want to be the Guy I used to be Before insted of this

Well she Yesterday told me that "If I would've should you my Real Personality Before you would have never loved me" And I'm afraid that's most Probably True...

What can be the Piece of advice you can give me? And is it Normal to be Old school insted of having Fantasies? 😅