Mistress Zero in the Tiger Woods brouhaha, Rachel Uchitel, has been extending her fifteen minutes of fame with a stint on Dr. Drew Pinsky’s Celebrity Rehab.

However, after a week on the show- reportedly for an addiction to “pills” and alcohol- Uchitel fled for the “swanky” Beverly Hills L’Ermitage Hotel following a day of rehab that was intensely intense:

“Rachel simply needed some time away from the intense pressure and scrutiny that she is dealing with.

She agreed to go back to Celebrity Rehab 4. Rachel has never had to face these issues before, and talking about it pushed her over the edge, and her instinct was to run.’”

Not surprisingly, Dr. Drew managed to coax Uchitel back for further time in front of the cameras:

“Producers made her realize that if she continues to run away from her issues, she will never be able to live a healthy life,” a VH-1 insider tells us.

According to a VH1 source, Uchitel was discussing issues of “self-esteem” and “self-worth” when she made a break for it.