Pop princess Britney Spears successfully completed another weekend at the Promises rehab clinic in Malibu, Calif.
However, insiders reveal that Brit is fighting a serious battle against her inner demons, and new reports indicate she may be wavering in her treatment.
“Extra” has learned that Brit’s cousin, Alli, stayed overnight on Friday and dropped by for frequent visits on Saturday and Sunday.
While Brit continues to seek treatment as she promised ex Kevin Federline she would, a source close to the Spears clan said her family is worried about the troubled starlet’s progress.
"They hope that Britney will stay at Promises for a month, but they're nervous she might not last that long," an insider dished.
For more on Britney’s road to recovery, stay tuned to “Extra.”