My suggestion is don't chase her. You have already told her that you like her. She may be interested in someone else right now and was just trying to be nice. That doesn't mean you can't be her friend. I would just say be yourself and be nice. See if you can just be friends and hang out and go from there. But don't chase her that will just chase her away. She might just need to get to know you more. And being friends is the best way. So chill and take things slow and respect her feelings. If your feelings get in the way then occupy yourself doing something else that keeps you busy and your mind off of her. Another girl will come along eventually if this is not meant to be and not the right girl. Good luck and go slow.
