'The Ultimatum' star Rae Williams wasn't surprised Jake didn't propose to April: 'They kind of both knew'

• Reality show "The Ultimatum" features couples choosing to marry or break up after dating others.

• Rae Williams dated Jake Cunningham in a "trial marriage."

While viewers may have been somewhat surprised, Rae Williams saw Jake Cunningham refusing to propose to April Melohn on "The Ultimatum" coming.

"From what I heard, they were pretty much done," she told Insider in a recent interview.

"The Ultimatum" follows six couples where one person is ready to marry their partner and the other is unsure. Throughout the season, the participants select a new partner from one of the other couples to have a "trial marriage" with. They live with that person in a three-week "trial marriage" and see if there is a "connection" that might be stronger than what they have with their original partner.

After three weeks with their new partner, the participants are reunited with their original partner for a second "trial marriage," where they ultimately decide if they are better off marrying their original partner, being in a new relationship with their trial partner, or alone.

During the initial trial marriage, Rae, who participated in the show after issuing an ultimatum to her then-boyfriend Zay Wilson, lived with Jake, who joined the show with his then-girlfriend April. In that time, April lived with Colby Kissinger, another person who came on the show after issuing a marriage ultimatum to his girlfriend, Madlyn Ballatori.

During "Ultimatum Day" on the final episode of the season, which aired on Wednesday, Jake chose not to propose to April, who'd issued the ultimatum to him and prompted their appearance on the show.

"I think a lot of the girls kind of looked at it as just a way to learn about yourself through a different lens, see yourself in a different relationship. Then get back with your original boyfriend, and ride off into the sunset. Obviously that didn't happen for everybody," Rae told Insider.

"I think that they kind of both knew that's not the direction that they were headed in," she added. April almost confirmed as much during confessionals where she said she arrived on Ultimatum Day with a "knot in my throat."

"Him and April went through so much," Rae told Insider.

Throughout the season, April and Jake had a series of arguments including one where April confronted Jake after finding videos of Rae "twerking" at a club in his phone. Jake claimed to find texts from April to "a lot of guys that she found partying at the club," starting another fight that spanned two episodes.

Despite their breakup, April ended the show with an optimistic spirit, saying "single April is coming unleashed!" In the reunion episode, which also aired on Wednesday, April and Jake confirmed that they'd never reunited, and April revealed that she is now in a serious relationship and has moved in with her new partner.

All 10 episodes of "The Ultimatum" season one are now streaming on Netflix.