Glad to hear that for you and your wife. Lets how to convience a woman not to be jealous, got me
You guys have a very long track record if she can still be jealous now I don't think your going to change that.
You sure that there might be more to your situation, it seem to be very hard for a lady to return here after enjoyng the independence of creating a life in the states.
They had to adapt there, so they are different then when they left. The family still thinks of them in the same way as before. It seems to be a difficult adjutment going back the other direction.
Actually probably easier for us guys we only have to just to being here. Unless of course you go back, for me that would be tough.
My suggestion put a little distance between you and the family, convience her to try a short trial period. Don't buy a house and don't, burn't the bridges. after a yaer if things are still the same, more then likely you should return to the states. I see your from California, I have a good retirement and there is no way I could do more then exist there. But there are other areas that are not as expensive.
Tough situation if she is not happy here I doubt that you will be.