Give it a couple more weeks and see if you feel anything then, it may just take a bit of time to develop. The girl I was seeing earlier this year liked me more than I liked her, I didn't feel that much of an attraction to her to start with but after about a month or so things developed and got stronger from there. You can't rush love, it's actually best that you haven't fallen for her yet; gives you a chance to get to know her better and fall in love with her personality rather than her looks.