Fleur could remember a time when she was a respected member of society. A charismatic soldier, veteran militiaman. She lived a comfortable life in the Andoran farmlands, bar the occasional bandit raids. All that changed one day, when Fleur's divine powers awakened.
On that one day, Fleur gained the ability to hear what plants think. But, as she explained to others, they didn't really think, so much as chatter endlessly. While barely tolerable most days, the chatter turned into incoherent screaming come harvest time. All methods of ridding herself of the curse exhausted, Fleur took matters into her own hands and permanently deafened herself.
Though Fleur's curse was sufficiently supressed with her own methods, the years of suffering left a deep, lasting scar in her psyche. So much so that in fear that the screams of the next harvest would overpower even her deafness, she fled to Nex, where the wastelands surrounding Quantium proved better comfort than the farmlands of Andoran.
But the trip left her without a penny to her name. And for all her skill in combat, few would accept a deaf soldier. And so she turned to the work of mercenaries, however bad a taste it left in her mouth. It was, after all the one way she could still ply her trade.