Kristin Cavallari is single again after revealing her breakup with 24-year-old Mark Estes on Friday.

The founder of Uncommon James, now 37, disclosed the news during her guest appearance on The Unwell Tour with “Call Her Daddy” host Alex Cooper in Austin, Texas, telling attendees that the breakup was “so fresh, you guys.”

Cavallari mentioned that more details about the split would be discussed in an upcoming episode of her Dear Media podcast “Let’s Be Honest with Kristin Cavallari,” according to various fan videos shared on Instagram and TikTok. This separation comes shortly after Estes guest-starred on “Let’s Be Honest,” where he talked about envisioning a future family with the “Very Cavallari” star.

Cavallari and Estes Made Their Relationship Instagram Official Early This Year

Back in March, Cavallari officially shared their relationship on Instagram with a selfie of the couple under a beach cabana, captioned “He makes me happy” along with a heart emoji.

Following their public announcement, Cavallari responded to detractors of her dating a younger man in a TikTok clip.

In her video, she noted, “When they’re all up in arms that I’m dating a 24-year-old. Andddd?” as she mouthed along to a caption saying, “So what are you gonna do about it?”

Cavallari’s Breakup with Estes Follows Her Divorce from NFL Player

Prior to her relationship with the former Montana Tech football player, she was married to an NFL quarterback. This breakup comes four years after the “Hills” star in 2020 announced her divorce from longtime Chicago Bears quarterback Jay Cutler, who was featured on the three-season E! reality show “Very Cavallari.”

Viewers first got insight into Cavallari’s dating life through her appearances on the MTV reality series “Laguna Beach,” which focused on high school students in Orange County, California, and its popular spinoff, “The Hills.”

Since her divorce, she has gone out with Estes, comedian Jeff Dye, and L.A.-based trainer Jason Walsh, who was featured in a September 24 episode of “Let’s Be Honest.”