Good points Fathima...these are some of the basic rules for a successful marriage.

However,in a civilised society, I bet each married man or women on the planet knows how he/she should behave within a marriage/relationship based on what he imbibes from parents and the society...even then there is so much aloofness, dissapointment and heartbreak in many marriages. Also, if the relationship is not bound by marriage, it is even more fragile. People would just say, "it didn't work out" after living together for some years.
Why does it happen?