Brother PTR,
In my honest opinion, I feel that it is right for you to offer her the money, or you might end up paying more later...
As for her leaving, well, as long as you know how to handle, which I never had any doubt, you can try to contact her to establish a "long-term" relationship for the future. Just be careful! Maybe I'm over-sensitive but I always feel that there is more to it then meets the eye... it might be a ploy to "hook" you for good....
Then again, who am I to offer "advice" to a veteran like yourself.. ahhaha.. please pardon me if you're offended... :P
Hope you have a wonderful stay in Kunming and see you and Bro SGP back in Singapore if possible..
Cheers!
Shanghaitan