report, a source close to the family told the site:
"Rumer, Scout and Tallulah just don't want to deal with the drama at the moment. Since breaking up with Ashton, Demi has been a mess. The girls were there for her through it all -- the split and the rehab but now they just feel like they need a little distance.
"Demi is just being very needy right now, and the girls are tired of it; they want a mother not another little sister. They are all concerned that she is going to relapse and head back to rehab and they can't deal with the stress and worry of it."
It doesn't help that the girls all adore Kutcher. Rumer invited the "Two and a Half Men" star to her singing debut in March. Tallulah wanted Kutcher at her high-school graduation, but Moore reportedly put her foot down.
Some are calling it karma. Moore didn't speak to her mother Virginia Guynes for years. Reportedly, "Demi ... let her die in poverty after living for years on $250 in social security and $85 food stamps a month, while Demi had millions."
Moore turns 50 in November. Some of her behavior is believed to be concern (or even panic) over an age in which actresses find work hard to find. That, as well as being at an age when it might be harder for her to find a life partner, are weighing on her, it's said.