How much does the character of Gertrude Lodge change as the story unfolds?

Gertrude Lodge is one of the main characters in the ‘Withered Arm’ and as the story unfolds her character changes dramatically. We see Gertrude change from a kind, loving, beautiful lady, to a suspicious, deceitful, desperate, bitter women.
She enters the story as the nineteen-year-old bride of Farmer Lodge. Although little more than a girl, Gertrude is mature and ‘a lady complete,’ and immediately on her arrival in the village sets about the duties of the bosses wife by bringing gifts to the poorer people in the parish. She is, however, timid by nature, and has a natural shyness, as is shown by the ordeal of her first public appearance in church.
At the beginning of the story, Gertrude is a well-presented lady with a future of prosperity ahead of her. She is well educated and of a well spoken family. She is very pretty; ‘her face too fresh in colour, but it was of totally different quality – soft and evanescent, like the light under a heap of rose petals.’ She is young...