Some foreigners here seem to have precisely zero consideration for locals, in particular for some of the Chinese women. I can understand wanting the girls & not wanting marriage, and all the usual male/female complications, and some cultural differences and ... but there are things I just don't understand. Two incidents that both took place in lao wai bars:
A British guy here "You're not my girlfriend. You're just somebody I'm screwing." I must admit there have been women I have thought approximately that about. I can even imagine circumstances in which I might say it to her, in private. This does not seem likely, but possible. However, this guy said this in public, in a group of mutual friends.
An American guy here visited another town and greatly enjoyed the local pink shops; apparently the girls were young, pretty, cheap and enthusiastic. I can see telling the other men about this; some of us would like to know and others might enjoy the story. I can also see telling your girlfriend about it, very much depending on the relationship. However, this bozo told the lads about it in public, with the girlfriend and other Chinese women sitting there.
Now it seems possible both guys are just jerks (I'm certain one is, but find the other a fine lad to have a beer with) and also possible they'd treat Western women just as badly.
However, I wonder if there isn't something else going on, Are some foreigners so clueless about "face" that they do not realise that causing the women involved to lose face is cruel, stupid, & unnecessary?