Okay, You sound like me a few years ago when I was in high school. LOL I started dating a black guy that was attending the very same type of church I went to and was raised in. I have always lived with my grandparents, so it was an even worse subject to bring up with them. I knew I cared a lot about him, but did not KNOW for sure at that point that he was "the one". After all, I was only 16. I was in no way ready to be married or even looking for the right guy to be married with. Anyway, This guy was wonderful, He was a Christian, played football, didn't do drugs, didn't drink, nothing really "bad" about him. But I knew that my grandparents would not accept it, but I got into the relationship anyway. I knew they wouldn't agree, so I just didn't tell them and I hid the relationship from them. WRONG THING TO DO. I'll just tell you that right now. I was in so much trouble when they found out; mainly because I had been sneaking around and wasn't honest about the whole thing. Anyway, They did disagree, but I didn't care. I couldn't find anything in the Bible telling me that my choice was wrong. (and believe me, honey, I tried. LOL) Then I talked to my preacher about it and found out that his own sister had married a black man and he had 2 nieces that were biracial. So, After talking to him about it and hearing what the Bible had to say, I realized that God had put in my heart to be with this guy, so I just told them, I want to be with him, I care about him, and if you disagree, we don't have to talk about it. But I was going to be with him. And To this day, We are still together and we have a beautiful daughter together. That was 7 years ago and the people in my family who really care about me are still in touch with us. The ones who didn't agree, Are not. But I accept that because I know that they have a lot of growing with God to do to learn to accept things that are beyond their control.
I guess my whole point is, be honest with your parents, tell them to give him a chance and just see if they like him. Tell them about him and let them meet. If it is supposed to be, It will be. God will take care of it for you. You are in my prayers!