The Ultimatum: Marry or Move On — Caleb and Mariah's journey on the show

The finale and reunion episodes of The Ultimatum: Marry or Move On season 3 aired on December 18, 2024, concluding the journeys of the remaining couples. The show focuses on couples facing a pivotal moment in their relationships, where one partner issues an ultimatum to either move forward with marriage or separate.

This season, Caleb and Mariah’s relationship stood out, as they navigated significant challenges and decisions about their future. In the finale, Caleb proposed to Mariah. The reunion provided additional context as the couple discussed their experiences, reflected on their time in the experiment, and shared updates on their plans.

Caleb faced uncertainty about marriage throughout season 3 of The Ultimatum: Marry or Move On. In contrast, Mariah remained clear about her goals for their relationship. The couple confirmed about still being together in the reunion episode and hinted at the wedding taking place in the summer of 2026.

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Caleb proposes to Mariah in the finale of The Ultimatum: Marry or Move On

The finale of The Ultimatum showcased Caleb’s decision to propose to Mariah, marking the end of their journey on the show. Caleb began his proposal by expressing his feelings.

“For the last two years, I have had the honor of watching you grow, and with each day that you've grown, so has my love for you,” he said.

Mariah, with tears, accepted the proposal and said yes. The proposal followed weeks of reflection on the challenges faced during the show. Caleb acknowledged his earlier reservations about marriage, explaining that his time on the show helped him confront his fears and understand what he truly wanted.

“This process was not easy, but it made me realize how much Mariah means to me and how ready I am to take this step,” he shared.

Mariah shared her perspective, highlighting how the experience strengthened their bond.

“This journey showed us both that we have things to work on, but we’re stronger for having gone through it together,” she stated.

The finale concluded with the couple moving on to their next chapter, with Caleb putting the engagement ring onto Mariah’s finger.

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Caleb and Mariah reflect during the reunion of The Ultimatum: Marry or Move On

During the reunion of The Ultimatum: Marry or Move On, Caleb and Mariah shared updates about their engagement and plans for the future. Caleb also expressed gratitude for their experience on the show.

“We’ve come a long way, and I’m proud of how we’ve grown together.”

Mariah agreed with him.

“It’s not just about the proposal—it’s about the foundation we’re building for our life ahead,” she added.

The couple addressed lingering questions from the season, including Caleb’s emotional connection with Aria during the trial marriage. Mariah explained how they worked through the challenges.

“It wasn’t easy, but it made us confront things we might have ignored otherwise,” she stated.

Caleb admitted that the trial marriage was a turning point, helping him see the depth of his feelings for Mariah. Looking ahead, the couple revealed their plans to proceed with their engagement and work towards building their life together.

They expressed a shared commitment to approaching their future thoughtfully and prioritizing open communication. Caleb emphasized the significance of taking things step by step.

"We’re taking it one step at a time, but we’re excited about what’s ahead," he said.

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Fans can watch the finale and reunion episodes of The Ultimatum: Marry or Move On, which are currently streaming on Netflix.