Each other's family's

Zena
So my boyfriend of almost 1 year. Has meet my niece, my mom, my brother, my cousin, and my stepdad and my other cousin. Yet, I have not meet any of his family members yet. 
When I asked him about it three days ago, he said " I have a lot of family drama" and I replied " I understand that everyone has their fair share of family drama. Regardless I wouldn't stop loving you." 
So my question is should I really be bothered that I have not meet any of his relatives? Or let it go? Is it his way of protecting me from his family Or what? 
By the way, his family does know of me. He's talk to them about me. I just never meet them in person.