Demi Moore is “improving well” after her collapse and hospitalization for “exhaustion,” sources tell us. But despite reports that estranged husband Ashton Kutcher “rushed to her house” a few days ago after returning from Brazil, sources say the pair haven’t seen each other for weeks. One told us, “Ashton didn’t go to her house. He has inquired about her through friends and managers, and the family, and made noises to people around her. But the last time they saw each other was around a week before this [her collapse] happened, and that was because he needed something from the house.”

PHOTOS: DEMI MOORE

Even so, the friend said Demi, who her reps claim is suffering from exhaustion, is recovering. The source added, “This was a scare, but she’s doing very well.” Sources close to Ashton have claimed that he’s “deeply concerned” for her welfare after she collapsed after smoking an herb during a party. Reps for Ashton didn’t respond. A rep for Demi told us, “I cannot comment any further.”