why will married couples haveoutside affair

no i dont think so married couples will have out side affair . i have not seen any kind of person .

Obviously, there are glaring factors that could bring about this...1. where one of the patners does not satisfy the other...2. lust..yes lust leads one to an ugly thing as that...3.Marital problems...4. lack of love and distrust in a home and many more. it's better to keep the home aflaming with love and trust and this will be non-existent in a union.

because unmarried couples dont need to have "outside" affair