Is this guy gay?

im going out with this guy he is like a bad boy sort of thing who jst wear trakkies bt he always goes behind other guys and start doin sumthin if u no wt i mean n he always get private area's out n shows them 2 other boys bt i dont no if he messin or he is jst not tellin me sumthin cz it quite scarin me nw so do u think he is gay.