Ultimatum: On se marie ou c'est fini - Season 1

The couples spend their last nights together. Later, sparks fly and jealousy simmers as each person interviews their potential experience partner.

During a pool party, new bonds are formed and old ones are tested. Sarah and Théo connect over their fear of commitment; Sophianne and Romane hit it off.

Caught between Scott and Sophianne, Romane makes a decision. Aléna has an emotional epiphany about Benjamin. Later, the new partners move in together.

As André invites the boys over for Richy's birthday party, Romane hosts a girls night. Fresh information is shared — and tensions flare.

While Lindsay works on herself, Scott's resolve begins to waver. Théo and André butt heads; Sophianne, Romane and Catherine hit the recording studio.

As the three-week test comes to an end, the group reflects on the experience. Later, desire, doubt and drama collide as the couples finally reunite.

In the aftermath of the reunion, Sophianne and Lina wage war. Scott faces the consequences of his actions. An affectionate Théo reconnects with Romane.

Accusations and revelations run rampant during an explosive group meeting. Afterwards, each person spends a final weekend with their experience partner.

With emotions running high, the ultimatum day arrives. While some relationships end, others are transformed — and tears flow freely.

Two months after the ultimatum deadline, the members meet up for a revealing reunion. Which relationships made the cut — and which ones didn't?