Lindsay Lohan's beau Calum Best has reportedly dumped the singer/actress because of her 'dull' post rehab persona.
The 'Mean Girls' actress recently completed a 45-day rehab course at the Promises Clinic in California after being arrested on DUI suspicion charges following a car crash in Hollywood.
According to a pal, Best called up the 21-year-old Lohan and told her that she had become very 'dull', and that he did not want to stop partying because of her.
"Calum called Lindsay on Friday (July 20) and said that he was finding her post-rehab existence dull and that he didn't want to give up partying," Contactmusic quoted the pal, as telling the Daily Star.
"Calum loves Lindsay, but he's simply not in the same place as her anymore," the pal added.
Earlier, it was reported that the troubled starlet had dumped Best after the latter was photographed in 'a drug-fuelled romp', but the actress denied these reports and revealed her plans to spend some quality time with him.
In May 2007, British tabloids published photographs of Best making out and snorting cocaine with two hookers at a London hotel.