A guy and i always flirt with eachother, i have a huge crush on him, but how do i find out if he doe

There is this guy that i really like. we always flirt with eachother. sometime he says weird stuff like, your my girlfriend, adn i get really confuesed. the other day he was pushing me around, and then i jokingly said, your so mean, then he like grabbed my arm and said, im not being mean. there is a difference between being mean and flirting, and im flirting.how do i ask him if he likes me, or tell him that i like him?