By Alexis Tereszcuk - Breaking Celebrity News Entertainment Editor

Paris Hilton is fuming over her frenemy Kim Kardashian's meteoric rise to fame, but Breaking Celebrity News has exclusively learned that Kim just shrugs off any news about her former bff.

"Kim couldn't care less about Paris, or what she thinks about her," a source close to Kardashian tells Breaking Celebrity News.

While Paris was at the top of her fame her trusty sidekick was Kim, but they fought with each other and are now no longer friends. However, Kim's fame has skyrocketed since and as Breaking Celebrity News exclusively reported, this has infuriated Paris.

"Kim will always be a sore spot for Paris because she believes that without her Kim wouldn't have the success she has in her life," a source close to the situation previously told Breaking Celebrity News. "Paris thinks Kim wasn't a loyal friend to her and only used her to gain fame and that she is ungrateful for everything Paris claimed to do for her."

Kim and her family have become household names the way the Hiltons once were, and this has annoyed Paris' family.

"Bottom line, Kim used her friendship with Paris, straight up," the source says. "She knows what she did and doesn't care. It's just like she's now using Kanye West to advance her agenda."

Kim and her sisters have seen a financial windfall lately, especially with their reported $40 million payday for their E! reality shows, while Paris' recent Oxygen network show flopped.

"The Kardashians used the Hiltons all the way to the bank," the source says.