Alessandra Rampolla

In the final episode of the season, the participants return to look back on their experiences one last time. For some, it's a celebration, while others come under the microscope.

The cultural sensation returns with our first weddings; our hopeful singles meet for the first time at the altar, but one groom threatens to bolt.

All the participants are back for one final dinner party reunion and everyone has a lot of unfinished business.

Fall out from Intimacy Week triggers drama at the second dinner party.

A new couple enter the experiment but their wedding day is hijacked by drama among the original couples in attendance.

Carina and Paul dive head first into snorkelling and marriage; Eliot decides Lauren isn't right for him; Katie and Tim find their Tasmanian honeymoon suite's glass-enclosed bathtub offends Tim deeply.