Kristin Cavallari is opening up about the end of her relationship with Montana Boys star Mark Estes.

The former Laguna Beach reality star admitted that she was the one who made the difficult decision to end their romance after seven months of dating.

Cavallari, 37, said there was no animosity between the two and cited their 13-year age difference as one of the reasons she split from the 24-year-old TikTok content creator.

KRISTIN CAVALLARI AND MARK ESTES BREAK UP AFTER 7 MONTHS OF DATING: “IT’S SO FRESH”

Kristin Cavallari recently made the difficult decision to separate from Mark Estes (Getty Images)

“Mark and I broke up,” Cavallari said on her podcast “Let’s Be Honest.” “It’s hard because I broke up with Mark because I just know it’s not right in the long run, and it’s not because the love was lost or something bad happened.”

The former couple made their relationship public during an Instagram reveal in February.

KRISTIN CAVALLARI, 37, HAS THE “BEST SEX” WITH MARK ESTES, 24: IT “GETS BETTER AS YOU GET OLDER”

Despite their short-lived romance, Cavallari admitted that Estes was “the best friend” she ever had. She noted that “no one cheated” during their relationship and Estes was always “so sweet and supportive,” which made her decision even more difficult.

Kristin Cavallari took to Instagram with Mark Estes in February. (Kristin Cavallari Instagram)

“All I know is that he needs to experience life for the long term. He’s young,” she said. “With life experience, I started to feel the age a little.

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“I look back to when I was 24 and how much life has happened since then. These are crucial years. These are formative years. You find yourself in them, and you have to be able to do that.”

“I just know that he needs to experience life in the long term, he is young. With life experience, I started to feel the age a little.”

— Kristin Cavallari

Cavallari said her romance with Estes was “the best relationship of my life” and that she “never ignored the fact that he was younger.”

Estes gained internet fame in the trio Montana Boyz, which includes Kade “Cutter” Wilcox (left) and Kaleb Campbell Winterburn (right). (Getty Images)

“He’s going to make someone so happy one day… and he’s going to have a beautiful family of his own,” she said. “I know that one day he will look back and understand, and I actually believe that one day he will look back and thank me.”

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While some fans found their relationship controversial due to the age difference and the fact that Cavallari is a mother of three, Kristin doesn’t regret her decision to date Estes.

“I don’t regret taking it public. I don’t regret introducing him to my children,” she said. “I regret nothing. It was such a good, happy relationship. And I think that with every relationship you learn something and grow from it, and I will forever look back on Mark and I with such beautiful memories and just pure happiness.”

“I know that one day he will look back and understand, and I actually believe that one day he will look back and thank me.”

— Kristin Cavallari

The founder of lifestyle brand Uncommon James is “optimistic” about remaining friends with her ex and revealed she has no plans to date after the split.

Kristin Cavallari and ex-husband Jay Cutler separated in the summer of 2020 after seven years of marriage. They share three children. (Timothy Hiatt/Getty Images)

“I’m really happy and really content that my life right now is all about my kids and my work,” she said.

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“I just really want to take care of myself. I really feel this energy of wanting to feel really good and making myself a priority, and so I don’t really know where men fall on that list. I suspect she.” That’s somehow not the case, and I’m sure that will change in a few months. But right now that’s pretty much all I want to do.

Cavallari has three children with her ex-husband Jay Cutler: Camden (11), Jaxon (9) and Saylor (8). She and Cutler were married for almost seven years after tying the knot in July 2013 file for divorce in April 2020.