Just because she's Chinese doesn't mean much. Is she traditional? Modern? Progrssive? Anglicized? What? I would suggest that she might not be comfortable with couple d@ting until she was serious enough to have him meet the 'rents, and that would be very serious indeed, practically engaged. Try a group, as was suggested. If she comes, ask her again. Talk to her generally about HER culture -- where is she from, exactly; what kind of Chinese (there are many) she is; what were her schools like? Where she lived was it unusual for people to go to university, and so much more.
Don't worry. Either way, she'll let him know, but he should BOLO subtle, tactful, face saving signs, because that is all he is likely to get, either way.