Help!!! Relationship trouble this girl means everything to me

Okay I've been with this girl for a few months and at first everything was great we were happy had no concerns could talk about everything we were always excited to see each other and talk to each other she tells me she's not the realtationship type of girl she hates kissing she hates cuddling she thinks they mean your clingy then time goes by and she says that she loves doing all that stuff with me. As more time passes the exciting conversations turn dull we still love each other but the excitement isn't there anymore she says now she's on and off about the kissing thing and on and off about relationships she says she doesn't think she's for for a relationship she's more of being friends but having feelings it makes absolute no sense to me. If you can be friends and have feelings at the same time and love each other isn't that what's supposed to make a perfect relationship. I just don't understand I need help. I need advice as how I can make her feel the way we used to and how I can get her out of the mindset that she is no good for relationships.

maybe she's been burned many times over that she shuns serious relationship for the same reason that she does not want to hurt you. take time to get to know her and see if any of your romantic efforts are futile.. treat her like how you want to treat her, and if she reciprocates then be grateful. if she isn't into the physical thing, respect her decision. if she feels something deeper than friendship for you, she will make that move. just be patient :)