According to The Sun, the X Factor judge appeared to be "sobbing and devastated" when the designer made the comments at a party hosted by Sarah Harding.
He apparently said to her: "What the f**k are you doing? Who are you trusting and who are you working with? What are you thinking? Look in the mirror."
A source said: "Everyone was having a good time until Julien launched into a tirade of abuse. He went into a big rant. Nobody could stop him. Cheryl thought he was joking at first and told him to 'f**k off'. It was unnecessary.
"In the end Cheryl ran off crying. She was sobbing and totally devastated. The things he said were pretty cruel. It would have hurt Cheryl as he is a very big name in fashion. Julien was pretty drunk but it's no excuse. He did it in front of everyone."
