Question: what couples divorced on married at first sight?
Answer: Monet Bell and Vaughn Copeland were the only couple to divorce before Season 1 had finished. ... 
Davina Kullar and Sean Varricchio only lived together a few days a week a during Season 2​. ... 
Jaclyn Methuen and Ryan Ranellone decided to stay together after Season 2 ended, but later got divorced.