DO YOU THINK THAT I AM GAY?

im 20 and always thought straight (im a guy) ive always liked girls and ive never felt anything for guys. However i have alot of gay fantasies, more than straight fantasies, but after the fantasies my interest in it drops alot, but i could never see myself with a guy, maybe just sex but never emotional romance, where i have felt very deep emotions for several girls, ive had sex with one girl several times and i always got turned on and got off, so i cant be gay whats wrong with me