Can I marry a black single man who loves me?

I come from China. The guy is from a country of Africa. The guy whom I love worked in a Senior Middle School in East China two years and a half ago. We knew each other when we worked in the same town. We spent four months living in the same town. During the four months, we were attracted by each other and quickly fell love with each other. We had sex strongly anxiously. So we met twice or three times a month and had sex many times within four months.
After that, I moved to another city and worked there with a good salary. The guy went back to his homeland for holiday. He agreed that he would meet me again after two-month summer holiday.
It was the first time that I have had so wonderful sex with a man. I hope that I can have a happy marriage with the guy. I even cried when he set for his homeland. In the following six months, he could not return because he must look after his dad who was seriously sick. We contacted each other on the Internet.
One year and a half ago, he finally came to meet me and spent three days with me. Then he returned to his homeland. But he lost his newly found job because of the twenty-days leave. He could not go back to work on time and he was fired. We could not meet again till now.
Can I marry the black single man I still love deeply? Now, he has financial problems and can not buy the expensive air ticket from his country to my country. What's more, I don't have the ability to buy the air ticket from my country to his. We love each other, but we can not be together.