Dating a Vietnamese guy…please help. :O?

So I met my boyfriend online, we've been dating almost a year, and we talk on the phone or webcam almost every day. He moved here with his family from Vietnam when he was 7. His parents are in their 60's, and they can barely speak any English. They did NOT want him dating a girl outside his race, and when they found out he was dating a white girl, they gave him so much hell about it that we had to break up. They kept telling him that I was just using him, I was going to boss him around, I only wanted him for his money, etc. :/
We got back together 11 months ago, and we really love each other...his family has started to accept me, and they want to meet me. I'm so nervous though. My boyfriend says that they will accept me one day as long as I adjust to their culture, and I'm willing to do anything to be with him, I've already started learning Vietnamese...but...someone please help me on how I should act...tell me a bit more about their culture, etc.

My boyfriend and i have been dating for 8 months now and I still haven't met his parents. Once before when we ate at a vietnamese restaurant, several older couples turned and looked at me. Then they started talking about the "white girl".