in the candid interview , mary kay tells walters .
you have your ups and downs in marriage , " fualaau , now 31 , told barbara walters in an exclusive interview set to air friday , april 10 , in honor of the couple 's upcoming 10th wedding anniversary . "
 
photos : celeb couples and how they met those bad times include a seven - year prison sentence for letourneau , now 53 , who was a married mother of four when she and fualaau — then a student in her sixth - grade class — began their sexual relationship .
by the time he was 15 , they had two kids together , audrey and georgia .
also , for the first time ever , viewers will meet their two teenage daughters , audrey and georgia , who are now older than vili was when he conceived them .
letourneau first spoke to walters in 2004 after being released from prison .
vili fualaau , meanwhile , discusses his bouts with alcoholism , depression and why he believes the system failed him while he was still a minor .
as was well - documented at the airing on “ 2020 ” friday , april 10 , 10 pm et on abc in an exclusive interview with barbara walters , mary kay letourneau fualaau and vili fualaau sit down together on the eve of their 10th wedding anniversary , sharing intimate details about their headline - making marriage .