Ariana Madix and her boyfriend, Tom Sandoval, were both shocked when Scheana Marie and Robert Parks-Valletta called it quits last August.

Following just six months of dating, Scheana Marie and her actor boyfriend ended their relationship amid allegations of cheating aimed at Parks-Valletta on Vanderpump Rules. Right away, Madix and Sandoval were taken aback, and during a new interview, they are speaking out about their costars' surprising breakup.

“I didn’t expect them to break up,” Madix said during a Jan. 23 interview with People magazine. “I don’t know. I guess in hindsight, when I look back, I kind of see where I maybe missed things that were right in front of my face that kind of pointed in that direction already, but in that time, I honestly didn’t."

Scheana Marie kicked off her relationship in February of last year, just months after confirming the end of her marriage to Mike Shay. Then for weeks, Scheana Marie gushed over their "perfect" relationship and said she would marry Parks-Valletta as soon as her divorce from Shay was finalized. She even said that they could get married in July as cameras rolled for Vanderpump Rules season 6.

"I thought for sure they were going to stay together for however long. Definitely longer than they did,” Madix continued.

As for Sandoval, he was just as surprised, telling People magazine that Scheana Marie and her now-ex-boyfriend seemed to be "very" into each other prior to their split.

In addition to her ongoing comments about marrying Parks-Valletta, which have continued even months after their breakup, Scheana Marie has been seen taking frequent aim at her ex-husband, Mike Shay, on the show and frequently comparing the two relationships.

“We have every intention of getting married one day and having a family," Scheana Marie insisted to Page Six in December. “I’m like, that’s going to be one hell of a story to tell the grandkids, grandma and grandpa couldn’t get it together for 13 years, but now they’ve been married for 50.”

“I know that there’s no one else that I would consider marrying again, and same for [Rob]," Scheana Marie added.

Scheana Marie and her co-stars, including Robert Parks-Valletta, Stassi Schroeder, Ariana Madix, Jax Taylor, Lisa Vanderpump, and Tom Sandoval, can be seen every Monday night on Vanderpump Rules season 6.