While Britney's conservatorship has been a tumultuous part of her life, her relationship with the personal trainer and model has appeared to stay "rock-solid" since late 2016. Here's everything you need to know about Britney's new fiancé, Sam Asghari:"The couple made their long-standing relationship official today and are deeply touched by the support, dedication, and love expressed to them," Cohen said. He also mentioned that Sam proposed to Britney with a ring designed by New York City-based jeweler Roman Malayev.