The FL is not dumb honestly.. since she is fighting against a person called 'father'... she respect him for a long time and also must've felt guilt and such for adopting her.. so of course she keep on denying that feeling of betraying and rebelling.. every decision lead to big result and mostly it will bring down the entire family that she longed for once.. i agree with every step and plot. And every timing is perfect.. its not like she did not try to rebel and going against them but that bi**h is just pure evil for her to fight for now