The 43-year-old former Celebrity Big Brother star is set to marry Alan Thompson, 11 years her junior, just weeks after meeting him.
Pictures have been circulating of Danniella with the 32-year-old hunk on holiday together in Spain.
The new couple were seen hugging in the ocean as Daniella showed off her curves in a tiny string bikini.
“I’m in the best place of my life and so happy I can’t stop smiling”
She was also sporting a large rock on her wedding band to singal the engagement.
As well as the snaps, Danniella took to Twitter to confirm the news.
She has changed her bio to: “Momma, actress, presenter, writer, fiancée to Alan Thompson, loyal friend and West Ham supp orter. Lover of twirls and Louis Vuitton #familyfirst.”
Danniella also posted to her 232,000 followers: “I’m in the best place of my life and so happy I can’t stop smiling.”
Her fans seemed pleased for her, with one replying: “That’s fab to hear hun.”
Another told her: “You deserve to be happy.”
A few hours after that, Dannii shared a selfie in her bikini, writing: “Sorry for my absence from social media but love does that to a girl. I’m back and happiest I’ve ever been in my life.”
Danniella is known for her love of a toyboy.
She formerly dated George Arnold, 25, back in 2016.