I told me best friend that I liked her and she said this?

That im to good for her, that i deserve someone much better.....I told her to stop being nice and tell me the truth cause most of the time thats a crock.....and she said it wasn't......i asked her why she said because of her past, and that she had gotten and feels like less of a person because of it....i said I like you because your you.....and i dont care if you have , and relationships arnt all about .....and she gave me the clic "its not you its me" line......soo is she really not gonna date me cause she thinks im to good for her? i meen im not gonna lie im a muscular guy, tall, dark, handsome thing goin on, and im rich and treat her like a princess..and shes poor...but really????? like isnt that what a girl is looking for, is there such thing as being to good for someone? i just dont understand