Overview

• Kristin Cavallari, 37, goes public with her relationship with 24-year-old Mark Estes, a member of the Montana Boyz TikTok group.
• Cavallari defends her dating choice in a TikTok video, responding to critics questioning their age difference.
• The couple's relationship comes four years after Cavallari's split from former NFL quarterback Jay Cutler.
• Estes, a former college football player, has recently started exploring modeling and resides in Nashville.
• Sources close to the couple reveal they have been dating longer than the public knows and have kept their relationship private until now.