When you wait 8 months to file a lawsuit, it raises questions;
When you fail to file a police report immediately after allegedly being raped, it raises questions;
When you continued your trip, after allegedly being illegally drugged, it raises questions; (assuming she was not dead-heading on)
When you continue your trip, with the co-worker that allegedly drugged and raped you, it raises questions; (assuming she was not dead-heading on)
When you file a lawsuit against the deep-pockets company that employees the co-worker, instead of filing rape charges against the alleged rapist, it raises questions.

All these questions...lead to doubts. These are not unreasonable questions to ask, in my opinion.