I would take any allegations of harassment seriously. When the allegations turn out to be false, I take that even more seriously.
She will not be back, b/c that would require my consent, and that's not going to happen.
What may or may not have happened at TB is not my business, that's for Mark and TB admins to investigate. But in light of what happened here, in public and in private, I have my doubts that any harassment happened at TB. People who create drama wherever they go almost always portray themselves as the victim.
With that, I'm going to close this thread. The disruption here is over.