"The way we got together is so not normal," Trista, 41, tells PEOPLE exclusively. "But we do live a normal life. Yes, we met in a fantastical way, but it's really what we did after the show that mattered."
And having made it to their 10th wedding anniversary in December, the pair celebrated with an intimate vow renewal ceremony, which will air Jan. 19 on ABC.
So what's their secret? Moving away from Hollywood (the couple raise son Max, 6½, and daughter Blakesley, 4½, in Colorado) and focusing on their relationship.
"When the show was over, I saw Trista didn't need the cameras," Ryan, 39, tells PEOPLE. "Our roots grew deeper and deeper."
For more on how the Sutters and four other couples made their love last, pick up the latest issue of PEOPLE, on newsstands Friday