The participants gather for their hen and stag dos as the experts begin making their matches. First up are Luke and Lacey, and Dom and Claire. What will they make of their new partners?
The experts match two more couples. Vicky and Andrew's big day is dampened by Vicky's mum's wariness of her daughter's new partner. Will things fare better for Brett and Angel?
The final couples are matched. Former Bachelorette contestant Bel finds an immediate connection with Haydn. But Ben's lack of attraction towards new partner Aaron makes for an awkward ceremony...
The first three married couples head off on their honeymoons. While some couples become closer, tensions grow between others, and an argument leaves one pair sleeping in different rooms.
The remaining couples embark on their honeymoons. Ben and Aaron struggle to find any chemistry and spend an increasing amount of time apart, while Vicky and Andrew hit a rough patch.
The couples prepare for their first cocktail party. Haydn gets ready alone, uncertain as to whether Bel will join him. And will Lacey and Luke be able work through their differences?
The couples have their first therapy session, and it couldn't come at a better time, with several marriages at breaking point. Will anyone leave the experiment?
It's time for the newly-weds to move in together. Claire is still unwell, leaving Dom to settle in on his own. Later, a conversation overheard during Vicky's birthday party leads to drama.
A major blunder threatens to ruin Claire and Dom's reunion. Ben and Aaron have a fiery falling out over a night out. Bel and Haydn attend an emergency therapy session.
As the experiment reaches its final stages, the participants head off to visit their partners' homes. But on the advice of the experts, one couple stays behind. Can they work through their issues?
The newly-weds come together for what turns out to be an explosive dinner party. The night is cut short as tensions boil over and arguments erupt. And one couple leaves the experiment for good.
With just one week of the experiment left, the couples attend their final therapy session. Andrew and Vicky address what happened at the party. Aaron and Ben gain a better understanding of each other.
The end has arrived and the couples make their final decisions. Will they stay together or choose to go their separate ways?
Relive the highs and lows - and find out what happened after the experiment came to an end - as the participants reunite and talk with the experts for the last time
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