A source said: "Paris is furious. She was absolutely freaking out at the Cannes Film Festival when she heard Doug was talking to Rima. She's been constantly contacting him and wants him back!"

However, the 25-year-old 'Hills' star is said to be shunning his 29-year-old former lover's calls because he is not interested in getting back with her.

The source added to HollywoodLife.com: "Her mom Kathy has been consoling her. Doug is just over it."

Despite her actions, Paris recently claimed she loves being single and is "too busy" to embark on another relationship.

She said: "I love it! I am having so much fun. A lot of guys have obviously hit on me and I am getting thousands of calls, but I'm not ready to be with anyone.

"I want to stay focused on myself and my family and my work. Then, maybe in six months or a year... but for right now, I'm just too busy for a relationship."