I agree, the perception of truth will always be in the eye of the beholder and unless backed up by irrefutable fact will be subject to debate.
The only facts that I can see at the moment are, Patti either left voluntarily or unvoluntarily Neverland Express at a time that completely makes no sense after 13+ years of touring with Meat Loaf, which would undoubtably be his last world tour.
That to me makes no sense that she'd just up and leave for no reason. And I think we can safely conclude, it wasn't because she had a lucrative solo career waiting.
Pud