Ahead of the announcement, Khloe shared a cryptic post as she shared a photo of herself on her birthday trip to Turks and Caicos.
The photo, which Khloe shared on Instagram, showed the star with her back to the camera while stood in the crystal clear sea.
She’s wearing a silver swimsuit and holding the back of her head as if she has swept her blond locks away from her face.
In the caption, Khloe said: “There’s no point in looking back”.
Khloe and Tristan had been on and off since 2016, with Tristan being caught cheating on Khloe on a number of occasions.
The Kardashian beauty decided to forgive Tristan when he was caught cosying up to a woman shortly before she gave birth to True, but she later split from him when he allegedly kissed Kylie Jenner’s best pal Jordyn Woods.
The pair appeared to be making amends last year, which was documented in the Kardashian’s new Hulu series, but the final episode saw the couple’s downfall as it was revealed Tristan was having a baby with another woman. They have since split for good.