All of them left by their own choice, no one was kicked out! Or do you mean something else?
actually I forgot LL ...this fact is changed, it was from around 2011 so Lisa K doesn't count in either.
i read some of the woman left because of the cw management, Meav's coming back had it changed .
one was for her son, and the tour schedule was a toll, but at the time only 1 chose to leave herself..(not going by hayley) this was what I read
based off CW behind stories.