According to US weekly, Supermodel Alessandra Ambrosio and Jamie Mazur, who has been her fiancé of 10 years, have officially split. Christmas was the last time the businessman posted a photo with Ambrosio. The pair got engaged in 2008. They have been noticeably absent from each other?s side at events for a while, including the 2017 Super Bowl. The Brazilian beauty told Cosmopolitan in 2016 that time apart is what made her relationship work.