Actually, chinese sp's really do prefer white males.
Maybe she doesn't want to be recognized in Pacific Mall or T&T Supermarket. The risk is significantly higher when she is seeing Chinese dudes
In China, darker people are looked down upon. The whiter your skin - the better. I don't agree with this, but this is how they think.
The reason is simple-no black or brown aka South Asian countries ever beat the Middle Kingdom like a pulp and forced to sign unequal treaties throughout history. They do have a "fear" to white Anglo Saxon people since the Brits, French, and the German beat the hell out and divide the spoils in the past, while the Americans nowadays are still trying to contain the rise of China.
Still, it's an open secret as the Chinese look down upon the white people by calling them "Gwai", ghost in Chinese.
BTW, the only white people the Chinese really look down upon are the Russians, since they took the advantage of Chinese weakness and took a large chunk of land in Siberia without firing a shot, while they hate the Japanese since the latter group used to be "junior", yet attain strong economic power and visciousness in warfare like the white during WWII, where China was a victim.