Am I overreacting?

So me and my boyfriend of 6 months (hes 18 im 19)hang out everyday and in the beginning he would come to my house and we would watch movies and talk or whatever but now it seems all he ever wants to do is play video games with his online gamer friend.

Like now just watch maybe and episode or two of some random tv show then he plays hes videos games all night laughing and talking with this guy...like idk why he even bothers coming over if hes just gonna be playing video games and talking to someone else..Ive brought it up to him and he says he could be doing much worse things than playing video games and I just dont know how to get through to him or maybe im being dramatic?

*side note* We've been hanging out all summer but he goes back to school tomorrow