I been dating my boyfriend for a month now, but I don't know any of his friends. All my friends know about him, but he never introduce me to his. What should I do? How should I ask?

You should say:
(bf name) I want you to introduce me to your friends.
When you don't I feel that you don't care about me.
Or ,however it makes you feel.
Clearly,its not good and he needs to know that he has to honor you because you deserve it!