Well maybe she did act that way because of your race or maybe it was for some other reason. But you don't have to be black to experience racism and you don't have to be a female to experience sexism. But even though white males can experience racism/sexism, if he claims it he rarely gets a senstive ear. I don't have a problem with you airing your grievance, but what irks me is it's only acceptable and embraced if a nonwhite or nonmale points out racism/sexism.
Point is sh!t happens to everyone for reason beyond their gender and race, and honestly I don't accept the premise that any one race or gender is more disadvantage than another nowadays.