Im a lesbian and I like my best friend who is straight help me please?

Ok I just told my best friends and little sister in a lesbian but I still didnt tell my parents and I like my best friend (Kaitlin) a lot and would like to date her sometime but she's straight and I told her I like her and age doesn't mind all she said was that she would never go out with me and I know hat there is 1 to 10000000 chance that she will ever go out with me but Its really hard to not stare at her and I she get all the time because she's on my bus on the way to school and home from school and I really really like her should I just try my hardest to forget it or get her to agree to come to my house over the summer and go on a walk to the creek down the street from my house because that was what I had in mind if she turned out to be a lesbian or bi