djal
There are probably many different explanations for this type of "jealous" type behaviour, and I dont pretend to know them all. But I will tell you how it has emerged in my own relationship with my Chinese wife.
During the course of our relationship (15 months so far) she often queried me on the attitudes of Western men to their wives.......do Western men take their wives with them when they go out to dinner with friends ? Do Western men have mistresses ?, do Western men like to look at other women ?......and all that sort of stuff !!!
In exploring this subject with her, I got to understand that there are many Chinese Men who treat their wife as the household slave and not much else !!! So many Chinese women have a very strongly developed insecurity about Men in general, and about relationships as they know them.
My take on this "jealous" type of behaviour is that it is more based on this insecurity than pure jealousy. My wife was a victim of this Male behavour, with a drunk, abusive husband who gambled all their money, physically abused her...and when all the money ran out, he divorced her and took their Son with him and wont let her have contact with her son. During the course of her previous marriage, the husband had many "girlfriends" and at least one mistress that he provided an apartment for (only one that she knew about anyway !!!!)
Can you imagine what this does to a woman !!!!!...it is seriously inhuman.
The only response many of these women have is to try to control the relationship and do all they can to stop their "Man" having contact with any other women.......remove temptation so to speak. It is a bit naieve I know, but that is their only way out of the problem. Sometimes it comes across as possessive , controlling or Jealousy. But I now know, once they believe that a Man is not going to do these bad things, it all goes away and peace prevails !!!
I am sure other Bros here have different views on this subject...but that's how I see it.