Question: married at first sight what couples stayed together?
Answer: Jamie Otis and Doug Hehner (Season 1) ... 
Ashley Petta and Anthony D'Amico (Season 5) ... 
Jephte Pierre and Shawniece Jackson (Season 6) ... 
Danielle Bergman and Bobby Dodd (Season 7) ... 
Stephanie Sersen and AJ Vollmoeller (Season 8) ... 
Kristine Killingsworth and Keith Dewar (Season 8) ... 
Elizabeth Bice & Jamie Thompson (Season 9)