We have some celebrity news to share with you. It seems that Kristin Cavallari and Mark Estes have recently broken up. According to a source, the couple called it quits after seven months of being together. This news has caught the attention of many, as the pair had made their relationship public earlier this year. Kristin Cavallari who rose to fame on the reality TV show The Hills, and her now ex-boyfriend Mark Estes, had confirmed their relationship on Instagram back in February. The couple had shared a photo of themselves enjoying a vacation in Cabo San Lucas. In the caption, Kristin expressed her happiness with the simple words, "He makes me happy." While we don't have all the details surrounding their breakup, it's clear that Kristin Cavallari is now single and back on the market. This news has left many fans curious and wondering about the reasons behind their split. However, as with any public figure's personal life, we must respect their privacy during this time.