What should I do for her? I only want what's best for her, please help!?

dang dude. thats some deep stuff. i know where your coming fro though and i understand. you want to do anything for her, no matter the sacrifice. you want her to be happy at the cost f your own. thats love my friend. i say you keep up what your doing. keep being that innocent guy she may see as a friend. but thats OK! she will see that your there for her and would do anything for her to be happy. if shes that awesome girl you feel that you fell in love with, then she will come to you. just keep being that friend. maybe bring up a relationship in one of your conversations. it doesn't have to be about a relationship between you two, it could be like how many shes been in, if shes in one, does she want to be. just try it out and see how it works.