Kristin Cavallari Explains Her Break Up With Mark Estes on Podcast TMZKristin Cavallari Says Mark Estes Will ‘Thank Me’ One Day for Ending Relationship: ‘The Best Boyfriend I’ve Ever Had’ PEOPLEKristin Cavallari Explains Why She And Mark Estes Broke Up TODAYKristin Cavallari Gets Choked Up Detailing Mark Estes Split: ‘No One Cheated’ Us WeeklyKristin Cavallari splits with 24-year-old boyfriend Mark Estes after 7 months USA TODAY