I must utter a heavy sigh when I think of poor Demi Moore desperately trying to vie for a young, Leonardo DiCaprio's attention.

The National Enquirer broke the story stating a "desperate" Demi, 49, has been emailing and calling newly single Leonardo, 37, but he's apparently not reciprocating.  After a brief affair between Demi and Leo, way back in 1997, she has been hoping lately for the 'once was' to be 'once again.'

Here's what the Enquirer had to report: "Demi is so lonely and hungry for love," a source revealed. "After all these years, she's romanticized what really amounted to just a fling. She's infatuated with Leo becoming Hollywood's hottest power couple. She's lonely and facing her 50th birthday this month, so she's looking to rejuvenate her love life and career."

According to the source, Demi has been spending more time in New York recently, where 37-year-old heart-throb Leo is filming The Wolf of Wall Street. Unfortunately for Demi, Leo is giving her the big-time blow off," continued the source. "He won't even get together with her for coffee!"

After Ashton left Demi she; "entered rehab in early 2012 for prescription pill and eating disorder-related problems following a physical and emotional meltdown."

The source also went on to report;  "Demi's dream is to find a young, successful guy who can help elevate her back to her past glory.  But she's barking up the wrong tree with Leo. He idolized her when he was in his 20s and fresh off the blockbuster success of Titanic, but now Leo thinks Demi is too old. He doesn't want to get tangled up in her messy life."

And who can blame him?

TELL US - SHOULD DEMI JUST FIND A MAN HER OWN AGE?