But Kylie Minogue has nothing but warm wishes for Olivier Martinez after the happy news he is to wed Halle Berry.
The Aussie pop star was one of the first to tweet the couple, writing: "Congrats to Olivier Martinez and Halle Berry!! #wedding."
Kylie has remained on good terms with Olivier since they split in 2007 after five years together.
At the time they said the decision to separate was mutual and that they remained "very close friends".
Olivier was Kylie's rock during her battle with breast cancer, and many thought they were close to marriage.
"Olli was there all the time, helping with the practical stuff and being protective," said Kylie of the time.
"I don't like to say too much in public about Olivier as he's a very private person, but I will say that he was incredible.
"He didn't hesitate in cancelling work and putting projects on hold so he could be with me. He's the most honourable man I have ever met."
Since splitting with Olivier, Kylie has found love again with Spanish model Andres Velancoso.
The pair have moved in together in London and the singer has described him as "the one".
Olivier meanwhile, fell for Halle after meeting her on the set of shark thriller Dark Tide in South Africa in 2010.
The pair reportedly got engaged over the festive season.
And though the couple haven't confirmed the news, Halle has recently been photographed sporting a stunning emerald sparkler on her ring finger.