First i wanna tell you well done
look, from my Experience what you should do to keep her Interested in you it's to let her fee feel feel, this is the Secret!! Girls are naturally connected more to them feelings and when you talk to her you need to keep her feelings "working", this is what make girls feeling the attracted to boys, she nees to F-E-E-L!!
you can do it in alot of ways:
you can ask her what is the most thing that Made her nervous this week, or you can get close to her and ask her wqhat is she feeling when she get inlove( this one is my Secret Weapon
working all the time because she think you are cute already and when you ask her it she starting to think about the feeling and she gonna feel that you are her one, Trust me )you can teel her story and ask her what she would feel if it will happen to her...
hope you get what i mean.
good man.
cheers.