he's 21, i'm 20. we've lived together for 6 months now.

every time he goes out with his friends (not only guy friends, also with friends from his course, coworkers etc) he wont invite me along. and he hasn't introduced me to his main group of friends (I know some of them from before but formally he hasn't introduced me to the whole group) and he won't ever invite me along when he goes out with them.

His ex-girlfriend (who is a bit of a spaz) also hangs out in the "main group" (haha) so one time when I brought it up he said it would be awkward because of his ex.. I do understand that but now when he doesn't hang out with those friends, hangs out with other friends, or when his ex isn't involved, he still won't invite me along.. 
We have quite a strong relationship other than this, but I feel quite rejected when he doesn't invite me along.
user
bf won't introduce me to his friends and he
assistant
he's 21, i'm 20. we've lived together for 6 months now.

every time he goes out with his friends (not only guy friends, also with friends from his course, coworkers etc) he wont invite me along. and he hasn't introduced me to his main group of friends (I know some of them from before but formally he hasn't introduced me to the whole group) and he won't ever invite me along when he goes out with them.

His ex-girlfriend (who is a bit of a spaz) also hangs out in the "main group" (haha) so one time when I brought it up he said it would be awkward because of his ex.. I do understand that but now when he doesn't hang out with those friends, hangs out with other friends, or when his ex isn't involved, he still won't invite me along.. 
We have quite a strong relationship other than this, but I feel quite rejected when he doesn't invite me along.
user
Should I talk to him about it (again)? What
assistant