Times have changed, kids. Lindsay Lohan and Mary-Kate Olsen used to fight over boys and tables at the hottest clubs, but now they are in a desperate battle over life coach Lori Cerasoli.

Lori Cerasoli has always been MK’s “go to” person when she is melt-down mode, and the recent Federal inquest into her role in helping Heath Ledger get un-prescribed OxyContin has troll-girl on edge. MK is said to be livid that Lori isn’t available to her right now because she is busy babysitting Lindsay Lohan.

Star magazine reports that the celebrity life coach has been counseling Lindsay through her recent battle with addiction. Dealing with LiLo and all her baggage doesn’t leave time for any other clients.

“Every time Mary-Kate wants to get hold of Lori, she feels like she’s with Lindsay. Mary-Kate called Lindsay and told her to get her own counselor. Lori can only work with one client at a time-and right now she’s with Lindsay, who has no intention of giving her up!”