I know what im about to say is going to be very controversial but if you're a guy and she is your bestfriend there is usually a good chance she is not attracted to you. If you're a girl then maybe you have a chance but still it's low. This is just the hard fact. It's okay to love but you will get hurt if you expect those feeling to be reciprocated and there is always gonna be the one tingling part of yours that wants the other party to love you back no matter how much you try to suppress it.