She had been mistreated and made an outsider in her household. With Jake's absence made Carla's allegations easier.
Since everyone in the home was related to her, her words were the most important and should be taken seriously.
She was left alone and without someone to support her at such a young age, lost her mother, and was disregarded by her father while Mr. and Mrs. Hernandez were sent to early retirement, and Aiden lived in the dormitory in school.
Everything that belonged to Joan was given to Jenny, her younger half-sister. Whenever she thought about it, Joan's whole body trembled as she remembered the past.
Carla had cornered her one day, and the cold gaze in her eyes was unmistakable. She didn't have to speak louder. Her words alone were a knife to Joan's heart.