Moore, on the other hand, just dropped out of her latest project, "Lovelace," the Linda Lovelace biopic in which she had been cast as Gloria Steinem.
"She's the wronged woman, he's a young guy," Us Weekly senior editor Justin Ravitz told ABCNews.com. "She's having a bit of crisis, not sure where to go from here, she's not at the top of her game, no tons of projects. He replaced Charlie Sheen in one of the most popular scripted shows in an almost seamless transition. He's still young and hot."
Since their breakup, the former couple has collided at least three times at Hollywood parties in December and January, including most recently during the Golden Globes' weekend. "They exchanged pleasantries but it was awkward," Ravitz said. "I wouldn't say they were catching up like old lovers."
In recent weeks, Moore has been seen out partying, including with eldest daughter Rumer Willis, Ravitz said. At Hollywood hot spot Beacher's Madhouse, she was seen dancing on a table surrounded by three guys, a source told Us Weekly.
"She's obviously acting out, dealing with insecurity and depression. She's almost regressing," Ravitz said.
"It requires a lot of self-care after a breakup," said psychiatrist Dr. Reef Karim, director of the Control Center in Beverly Hills. "If you're out partying and doing drugs, you're not taking care of your body that well. And someone who is 30 and partying can get away with it a little better than someone in their late 40s."
Psychologist Kuriansky is concerned Moore could be battling old demons.
"When you start out with major self-esteem issues, it can be very hard to overcome. Some big blow happens and you fall back to ground zero," she said.
But Popeater's Shuter is optimistic Moore will be back on top. "Demi is Hollywood royalty," he said, adding that Kutcher would be smart to remember that. "In Hollywood, it's all team Demi."