I'm confuse nd dont no what 2 do?

There is this girl we are casual friend since 9yrs. She was my primary sch clmate. I luv her vry much but when i asked her out she seriously turned me down saying dat she is nt ready nd does nt hav time 4 any relationship 4 now nd dat she luvs me as a brother nd friend. She also said dat she is hapy dat somebody like me luvs her nd dat she hopes dat i'm nt disturbed bcos of it or her answer. Pls what wil i do? Will she come back 4 me nd i'm tryin ease off my feelings but i cant what wil i do since i luv her vry much.