it sounds like the problems with your wife come from two sources, which may be connected;
A. expectations. differing expectations and lack of understanding/appreciation/acceptance of the other's expectations,
B. lack of effective communication. with seeming limited ability in each other's language, clear and effective communication must be difficult/impossible; leading to ineffective problem resolution, and contributing to point A - catch 22?
if you're genuinely happy with the situation and your life, fine, but if you're not, get out.