Am i bisexual or just really nervouse?

im a male and i masterbate to girls only and i only have feelings for girls. and i wud never go out with a guy cuz its weried but i think im bisexual cuz i dont find a dick gross like alot of guys i wudnt do a guy because its kinda weried and i dont have feelings for them. am i bisexual? and before i started worrying like everyday i never even thought about it am i just worrying to much and i think i like it?