The promo's voiceover says: "Raise your glass to the final dinner party."
Jess then addresses the room, "We just wanted to say "thank you" for accepting us tonight into the group as a new couple. I know it's been hard on everybody to sort of accept it."
But Mike loses his cool, shouting, "I can't stand your face anymore!"
Jules then tries to share her views with Martha shutting her down, "You guys are just so f**king righteous aren't you!"
Before we completely have a meltdown, relationship expert John Aiken arrives with the honesty box.
What is the honesty box?
It contains questions that the couples have to ask each other. And as you'd expect, some don't get the answers they want.
Jess tells her man that she's in love, and asks, "Do you love me?"
You'll have to watch this evening to see if he does...