1, sadness and guilt: As a younger sister, Amy will undoubtedly feel sad after learning that her younger sister may be killed. I feel guilty because of my previous conflict with my sister. Think about whether I didn't do well enough. This kind of inner pain and remorse may make Amy cry.
2. Helplessness: Although Amy is usually an independent and strong person, she will feel helpless in the face of her sister's disappearance and her husband's betrayal. Amy realized that she couldn't control everything, and this helplessness made Amy cry.