Marrued but want to experiment

I'm 22 and married to a great guy but I feel like maybe I didn't give myself time to experiment with females .... I thought I was straight, now I'm confused because I just get so turned on by girls and want to have sex with one I don't think I will go behind his back because I see it as cheating still but ugh idk if I should just ignore this I also don't want to mess up this relationship if I say something to him. We've talked about 3somes but he doesn't like the idea which I respect.