Britney herself has addressed the sad news, saying, "Jason and I have decided to call off our engagement. I'll always adore him and we will remain great friends." The couple, who started dating in 2009, had seemingly mixed business with pleasure in their relationship up until now, with Jason starting out as Britney's agent and going on to become her co-conservator, along with her father Jamie. Jason was just this morning removed as Britney's co-conservator. The news follows another big announcement for Brit — she announced her departure from The X Factor US just this morning!