Currently rehabbing actress Lindsay Lohan has stopped returning badboy BF Calum Best’s phone calls since the leak of his cocaine-laced orgy with a pair of bargain-basement streetwalkers in Britain.

Lindsay, who has frequently left rehab treatment to work on her stomach crunches, also isn’t prepared to deal with Calum’s current paternity suit involving a young British model, with whom C.B engaged in a roll in the hay, and her infant daughter.

According to celebrity tattles:

“Even though their relationship was never that serious, Lindsay thought they were kindred spirits…..People close to her had been trying to tell her that dating Calum would bring down her image but she just wouldn’t listen. That is until she saw the pictures of him with the hookers for her own eyes.”