"Sorry I have been a bit AWOL the last few months, I’ve had a lot of welcome changes!" she began the caption, which accompanied a photograph of herself on the set of Neighbours, her new acting gig.
"Daniel and I went our separate ways quite a while back now (we were strictly flat mates in every way for over a year and a half, and ladies you have to know your worth and not settle for anything less than happiness!)."
Christie and Daniel share two sons, Hendrix, four, and Harley, three, whom she famously welcomed in quick succession, after falling pregnant just six weeks after welcoming her first child.
"The boys are both our priority and I can’t wait to keep all the amazing things coming this year! Xx," she finished the post.
This is the end of Christie's second marriage. She married director, Greg Hatton when she was 21 in 2008, only to split in 2013.