Why hasnt he introduced me to his friends and family?

[Alma]

So i've been dating an Albanian guy for about 5months now, and he has not yet introduced me to his friends and he hasnt introduced me to his family. The only person I've met was his brother. He never takes me out with his friends and his has ALOT of girls around as friends which sort of bothers me but I cant complain because I have guy friends as well.. We barely see each other due to school and work but now that it is summer we are more flexible with our schedule but it still needs work. He treats me great and respects me very much which is lovely but being hispanic, we are very tradition, when I date someone that I really care for I would love to introduce them to my parents and to my closest friends and it seems like he doesn't want that just yet. I had confronted him a month ago about this issue and claims that we are not getting married so it wouldnt matter.. and than it seems like he is protecting me from his friends and family due to the mix of races. Albanians usually stick with their own kind and me being hispanic is a flaw.. His intentions seem really good thats not a hidden fact but why does it feel as if we are keeping this "relationship" a secret??
And not only that.. But ive realized that now he's all about sex.. since we barely see eachother he claims that sex gets us closer together.. Which is true because I have studied that in college but why compromise in sex rather than just taking the next step and introduce me already?
I also have him on facebook, and notice that when he writes to me he deletes it from his wall so that no one sees what he writes to me.