What is normal?

Hey guys, so I turned 18 on July 8th and an entire four days later I had sex . . . For the first time. It was with a boy that I've been in love (and I don't throw this word around) with for the last 8 years. Sounds silly, I know. Wow, you fell in love when you were ten. But I've been head over heals for this guy, and I think he's been for me, too. But we haven't been dating because my parents have been very strict with me. Anyway, in this time we've both attained different levels of experience. But that I mean I've kissed a few people and he's had a lot of sex. When we had sex on the 12th he assured me he had no STD/Is and we used a condom. Everything went very well and I'm overall happy with the experience. However, he's upset because he didn't make me cum. I have no idea what he's talking about. I don't think I ever have, not even by myself. The whole thing lasted like two hours and I liked it all a lot. We ended up having sex again on the 15th and it was much shorter (though still great) and I still didn't cum. I don't have a problem with this because I guess I don't know what I'm missing. Is this normal? How can I make myself cum? Please help me /.\