gulnaz fell pregnant after being attacked by a man called asadullah in kabul .
she was rejected by her family and sentenced to 12 years in prison for ` adultery by force '
although that was later quashed , the unmarried mother was left an outcast .
so to give her daughter smile a normal life , she married asadullah .
in an exclusive interview with cnn , she described life with the rapist who is now her husband .