Married at First Sight 'Married at First Sight' expert Dr. Pepper Schwartz: I don't think Luke Cuccurullo is an honest guy 02/21/2019 Married at First Sight expert Dr. Pepper Schwartz apparently isn't a fan of Luke Cuccurullo's behavior in his marriage to Kate Sisk. Read More RELATED NEWS 'Married at First Sight' Decision Day: Becca catches Austin lying, Emily stands up to Brennan, and Cameron throws Clare under the bus'Married at First Sight' Couples Now: Who is still together? Who has divorced and re-married? Where are they now? (PHOTOS) 'Married at First Sight' couple Jamie Otis and Doug Hehner are having twins! TAGS: Luke Cuccurullo Keith Dewar Will Guess Kristine Killingsworth Jasmine McGriff Jamie Otis Stephanie Sersen Kate Sisk AJ Vollmoeller