Advice??

I've been with my BF for 2 years and he's met everyone that means something to me and I've only met his mom on purpose and his sisters in accident. Grant it he doesn't have a lot of friends just a few close one but I haven't met any of them. He always talks about our future and marriage (way more than me) but it bothers me that I've only met his mom on purpose I kinda met his sisters in passing. I've talked about this with him multiple times and he always say he's going to fix it but nothing. Our parents haven't even met (which is important to me) any advice? Am I over reacting?