So, I asked my two close friends (who are both female, Chinese and single) and they both said that it's pretty unusual to bring up marriage that soon. They said it takes a bit of time and getting to know each other before marriage is brought into the mix. Definitely not something talked about on the first or second date! So the only reason they can come up with (assuming he's not that abnormal which doesn't seem that way), is that it's because you're a foreigner. They told me that it's very "in" to date a foreigner-they like the idea of marrying a foreigner, so he's prob just afraid of losing you. If you were a Chinese girl, he would not have brought up marriage that quickly. (unless he's different than most...)