Bismihi ta'ala
In this case, ghusl janabah would only become wajib if she reached climax, and has nothing to do with releasing bodily fluids.
And Allah knows best.
Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from ANU, Canberra. He has written and translated several Islamic texts and also prepared educational videos on Islamic rulings and practices.