I hope she gets the help that she needs. It's sad that in this industry and in society in general, mental health is often not cared for properly, with taboos and fear of repercussions.
The behaviour she exhibited would also be commensurate with the use of certain mind bending drugs.
There has to be more to this than we currently know. Crew observe strange behaviour, don't think she should fly, crew tell purser who tells captain she should not operate, captain offloads her. Maybe insufficient evidence before airborne CLT but subsequent behaviour should have had her stood down in FRA and pax home. Dozens of unanswered questions at the moment.