Married At First Sightseason 18’s David Trimble has been claiming he’s a “good guy” all season long, but after owning up to the cheating scandal of the season, it’s clear he’s not at all who he said he was. Married At First Sight season 18 has been a wild ride for the entire cast, but especially for David and his MAFS bride Michelle Tomblin. David’s marriage to Michelle has been difficult, and his inability to account for his time has been a suspicious storyline this season. While Michelle’s been viewed as a villain, David’s behavior’s proven it’s really him.