After they split, Moore had checked into rehab for an eating disorder and substance abuse issues. The actress is reportedly plunging into depression after her three daughters -- Rumer, 24, Scout, 21, and Tallulah, 18 -- cut contact with her because of her hard partying.
"The girls want Demi to pull herself together, act her age and stop carrying on like some teenage party girl. But Demi just refuses to give up the lifestyle that once made her happy, even though it now just amplifies her loneliness," a source told radaronline.com.
"She's determined to find young love again and is at a loss as to why she is still single. On top of having no love life, her daughters have once again turned their backs on her -- she just feels so alone, and that feeling is made all the worse as Christmas approaches," the source added.
Moore's friends are worried that she is depressed again.
"Demi feels so alone in the world. Her mom and step dad are both dead... and although she has three step-siblings - she hasn't spoken to them in 30 years! And her half brother James is in jail for 10 years for assaulting his girlfriend so there is no one for her to spend the holidays with. It's going to be another sad and lonely time for Demi," said an insider.
"Demi's friends are worried she will be so down over the holidays that she may relapse, and they no longer know what to do to help her," he said.