There is a strong social expectation to stay married. Many times the marriage itself is arranged by the families. It doesn't occur to some that splitting up is

There is a strong social expectation to stay married. Many times the marriage itself is arranged by the families. It doesn't occur to some that splitting up is a possibility. Also they usually see it a combined venture of both the spouses. The social bonds are so strong, I know plenty of marriages where the husband is living abroad usually middle East and comes home literally for few days in a year and the marriages still survive