Shocker, but Mary Key Letourneau and her teenage lover-turned-husband Vili Fualaau haven't had the easiest marriage.
The two celebrate their 10th wedding anniversary this year and are opening up about their struggles in a new interview with Barbara Walters.
While it's hard to believe Letourneau, who served seven and a half years behind bars for her affair with her then-13-year-old student, and Vili are still together ... it hasn't been a cake walk.
"I don't think there's ever a full 10 good years of marriage," Fualaau says in a just-released quote from his sit-down with Walters. "You have your ups and downs in marriages. But, you know, what matters is how you pull through all the bad times."
The bad times for them include Letourneau's time in prison and Vili's battle with alcoholism and depression.
"The wedding -- it was fun to plan," Mary Kay adds. "Any bride-to-be loves the planning part. ... And I loved that."
"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,” she says of why they're speaking out again now. "So it's about doing the most responsible thing to protect our girls for the inevitable.”
The couple's two daughter, who are now older than Vili was when they were conceived, are also expected to appear in the special.
"I don't feel like I had the right support or the right help behind me," Vili says of his friends' and family's reaction to their relationship. "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."
Mary Kay is expected to talk to Walters about her desire to teach again -- and her wishes to have her status as a registered sex offender lifted.
The full interview airs April 10th on "20/20."