Kristin Cavallari and Mark Estes have called it quits — seven months after publicly debuting their romance. A source confirmed the break up to Us Weekly on Friday, September 27, revealing The Hills star is back on the market and officially single. Cavallari, 37, and Estes, 24, hard-launched their relationship via Instagram in February 2024.

The Laguna Beach star shared a photo of the couple together on vacation in Cabo San Lucas, Mexico, captioning it, “He makes me happy 🤍.” The pair, who have a 13-year age gap, sparked speculation of a budding romance when photos of them together were published by TMZ earlier that same month. The following month, Cavalleri revealed the Montana Boyz member first caught her eye via TikTok in September 2023.

“Back in like September, I’m scrolling and I come across this boy group, I guess you could call them, The Montana Boyz,” she said on her “Let’s Be Honest” podcast in March 2024. “So I go, ‘Holy s—-, who are these guys? Because they’re so hot. Specifically this one, who I’m gonna refer to as ‘Montana.

’” Cavallari said she received a message from the Montana Boyz’ account that said “I love you,” and she invited the group to be on her podcast. “That attraction was always there, but when I met him, I was like, he’s actually a really nice, good guy,” she shared. “He’s very sweet from the jump.

He was so sweet to me.” Cavallari also opened up in the same podcast episode about the controversia.