When vexation strikes, efforts cease engendering loss of love for life- at the worst end of the spectrum.
Samson was one of the victims of a feminine vexation. Delilah got a job from the philistines coloured with patriotism.
Maybe she was idiotic enough not to know the consequences of her action.
She probably wanted to demonstrate to the philistines that Samson was in love with her to the point of death!