Even the most drama-free relationships take work — and Mary Kay Letourneau and Vili Fualaau's marriage is anything but drama-free. Having started their illicit affair when Fualaau was just 13 and Letourneau was 34, the spouses of 10 years have had to overcome almost impossible odds to be together. And while they're still happily wed with two kids, they've had more than their share of highs and lows. 
 
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 "I don't think there's ever a full 10 good years of marriage. 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. "But, you know, what matters is how you pull through all the bad times." 
 
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 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. 
 
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 "It was a huge change in my life, for sure," Fualaau told Walters. "I don't feel like I had the right support or the right help behind me…From my family — from anyone in general. I mean, my friends couldn't help me because they had no idea what, what it was like to be a parent, I mean, because we were all 14, 15." 
 
 As was well-documented at the time, Letourneau and her student-turned-lover wed in 2005, a year after she was released from prison. In the time since, they've kept a relatively low profile — but that's about to change. 
 
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 "It is our 10-year anniversary, and we already know that no matter how protective we are, that there's going to be a wave of intrusion in our life right now that we can't stop," Letourneau explained to Walters. "So it's about doing the most responsible thing to protect our girls for the inevitable." 
 
 Barbara Walters' interview with Mary Kay Letourneau and Vili Fualaau airs Friday, April 10, on ABC's 20/20. 
 
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 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. Mary Kay Letourneau Fualaau is the former Seattle-area sixth-grade teacher who, at the age of 34, had an affair with her 13-year-old student, Vili Fualaau, and served seven and a half years for their inappropriate relationship. In the candid interview, Mary Kay tells Walters what makes their marriage work in spite of their huge difference in their age. She also discusses her surprising plans to teach again, as well as her intentions to have her status as a registered sex offender lifted. Vili Fualaau, meanwhile, discusses his bouts with alcoholism, depression and why he believes the system failed him while he was still a minor. 
 
 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. The interview airs on “20/20” on FRIDAY, APRIL 10, 2015 (10:00 – 11:00 pm ET) on the ABC TELEVISION NETWORK. 
 
 Letourneau first spoke to Walters in 2004 after being released from prison. At that time, she said that she wanted to marry her former student, who was 13 when their liaison began. “We’ve always planned that and it hasn’t changed,” she told Walters.
– The mother of all teacher-student sex scandals is returning to the national spotlight—just ahead of the 10th wedding anniversary of the two people involved. That would be Mary Kay Letourneau and husband Vili Fualaau, whose interview with Barbara Walters airs on ABC tomorrow night. Letourneau is 53 and Fualaau 31, but their relationship made national headlines when Letourneau became pregnant with Fualaau's child when he was all of 13. She had been his sixth-grade teacher. Letourneau spent nearly eight years in jail, but the couple stayed together and now have two teenage daughters, Audrey and Georgia. ABC is providing a few teasers, including the nugget that Letourneau wants to teach again, presumably only after getting her status as a sex offender lifted. Fualaau, meanwhile, will discuss his struggles with alcoholism and depression, notes Us Weekly. "It was a huge change in my life, for sure," Fualaau recalls of the scandal. "I don't feel like I had the right support or the right help behind me ... from my family, from anyone in general. I mean, my friends couldn't help me because they had no idea what, what it was like to be a parent, I mean, because we were all 14, 15." Letourneau says they did the interview in part because they figured they'd be deluged with attention ahead of their May 20 anniversary, like it or not. "So it's about doing the most responsible thing to protect our girls for the inevitable."