Mariah Carey and James Packer have split. Picture: Dimitrios Kambouris/Getty Images

TMZ reports that Packer, 49, sent several emotional emails to Carey, 46, as late as last month, where he affectionately called her “MCP” — Mariah Carey Packer.

In another email a few weeks earlier, Packer wrote to Carey and declared his love her the US singer. He added that he was keen to tie the knot with her “forever”.

He also called her his “soulmate”.

The email subject line also read: “Will U marry me soon MCP pls -:))))).”

In the email obtained by TMZ, Packer wrote: “I’m in love with you and can’t wait to get married and be together forever.”

He then went on to say: “There’s a song I’m listening to now that’s got lots of meanings and I hope it makes u smile. When you get caught between the moon and New York City best that you can do is fall in love.”

“All my love, laughter, light, respect and appreciation and admiration ... Thank you my fiancee and soulmate.”

Mariah Carey and James Packer kissing on Valentine's Day. Picture: Mariah Carey/InstagramSource:Instagram

TMZ also reports that a week before getting on a yacht with Packer on September 14, Carey gave him a Cartier wedding band as a birthday present.

The emails come after numerous rumours have emerged about why the A-list couple had a fight in Greece and suddenly ended their relationship.

Mariah Carey and James Packer in happier times in Portofino. Picture: Photopix/GC ImagesSource:Getty Images

Carey is reportedly blaming her breakup with Packer on Scientology influences, according to sources close to the superstar.

The New York Post reports those sources say she believes Packer’s business manager Tommy Davis, a former Church of Scientology spokesman, poisoned their relationship.

Insiders in Carey’s camp claim Davis took control of Packer’s finances, and even allege he has put the billionaire on a detoxification program known at the church as a “Purification Rundown” and ordered Packer to “disconnect” from the diva.

Mariah Carey and James Packer travelled the world together in front of the camera. Picture: GettySource:Getty Images

Sources close to Packer strongly deny this and say his split with Carey was due to her excessive spending and the drama surrounding her as she films a reality show for E!

The couple are reportedly “deep in settlement negotiations” as they flesh out the details of their very public split.

According to TMZ, the singer was ordered out of the Beverly Hills house she was sharing with the Aussie billionaire casino mogul, but is refusing to leave and is demanding that Packer buy her a mansion in Los Angeles as part of the settlement.

Mariah Carey and James Packer in Mykonos, Greece, where their fight occurred. Picture: Mariah Carey/InstagramSource:Supplied

The US gossip website claims Carey is privately demanding $50 million ($AUD65.7 million) from Packer partly because she relocated her family from New York to be with him in LA.

Woman’s Day magazine reported last week that a source close to the pair had confirmed their engagement was over.

Carey’s camp released a statement saying: “Mariah Carey and James Packer had a fight in Greece. They have not seen each other since,” the statement read.

Mariah Carey and James Packer holidaying in Capri, Italy. Picture: Mariah Carey / InstagramSource:Instagram

“The fight was not because of cheating allegations or excessive spending by Mariah. James is one of the most successful businessmen in the world,” it continued.

“They are trying to work it out but right now they are not sure if they will stay together. They are discussing it and plan to release a statement about their future.”

Carey has also taken to Instagram, posing with her friend and manager Stella Bulochnikov, to slam the magazine’s claims..

“#realfriends who don’t read Woman’s Day #wedontknowyou We love you #Australianlambs,” she wrote.

Earlier reports suggested that Carey was allegedly caught cheating with Bryan Tanaka, Carey’s choreographer and backup dancer.

Her spokesman quickly denied speculation the split was over any cheating and insists the singer’s excessive spending was not to blame.

Mariah Carey’s backup dancer, Bryan Tanaka. Picture: SuppliedSource:Supplied

Since the split with Packer, Carey has been spotted out with him. But Tanaka has denied the cheating allegations.

Packer has not commented on the split since the news made world headlines.