Kristin Cavallari, the 37-year-old TV personality, podcast host, and fashion designer, has officially split from her boyfriend, 24-year-old influencer Mark Estes. The news comes just seven months after the couple began dating. Cavallari confirmed her newly single status during a live event for Alex Cooper’s “Unwell” tour in Austin, Texas.

While on stage, Cooper revealed to the audience that Cavallari was “newly single” during a segment about relationship advice. This breakup follows a recent appearance by Estes on Cavallari’s “Let’s Be Honest” podcast, where he discussed his future plans, including his desire to get married and have kids, although he mentioned he didn’t want to rush into anything. Just weeks ago, they had openly shared that they were having the “best sex” they’d ever experienced in a relationship.

“Obviously I would like to have my own kid at the end of the day, but I think we decided to just keep on keeping on,” Estes said. 

“I don’t think we need to make any serious decisions … right now.”

Cavallari is a mother of three children—Camden, 12, Jaxon, 10, and Saylor, 8—whom she shares with her ex-husband, former NFL quarterback Jay Cutler. She first connected with Estes, who is part of a popular TikTok group called the “Montana Boyz,” through social media in September 2023, and they started their romance in February 2024.

The “Montana Boyz” gained attention for their entertaining cowboy-themed videos, which include lip-syncing popular songs and showcasing life in the countryside. Notably, Estes faced allegations of felony assault in February 2021, linked to an incident while he was a student at Montana State University, but he was never charged.

With her recent breakup, Kristin Cavallari is back on the market after a public but short-lived relationship with Estes.