Characterization in Regency romances, is for me, critical. I love forward thinking heroines, and shy, vulnerable heroines; and cheeky, hoyendish heroines - but whatever their character type, they have to be drawn within the constraints of the society, attitudes and behaviours of the time.
This heroine was so smothered in the constraints of the Regency period, I couldn't believe in her.
She was just too everything in the face of nastiness, servitude, etc - but when the hero steps in to help her out and put her life to rights, she becomes this ungracious, ungrateful shrew.
By the time she's abducted by the villain, I am almost ready to cheer! Marius (the hero) deserved better than this childish piece of baggage.