The experts play back the footage from their first vows to the time that they have spent on the experiment.
"Are you still in love?" Asks Mel to Mike.
"Yes I am," sighs Mike.
"And you Heidi?" questions Mel.
But Heidi's answer is very blunt and she curtly says: "No, not anymore," without explaining why.
The experts wonder if there is any chance they could reconcile and Mike gives Heidi puppy dog eyes.
She seems certain there is not, but won't reveal her reasons why.
Question is, what did Mike do and why has Heidi had such a dramatic change of heart?