* Envy: She probably envied their opportunity to go to the ball and experience the excitement and glamour.
* Sadness: She longed to go herself, but her stepfamily wouldn't allow it. This would have made her feel excluded and perhaps even rejected.
* Hope: Despite the circumstances, Cinderella may have held onto a glimmer of hope that she might find a way to attend the ball.
* Frustration: She might have felt frustrated by the unfairness of the situation and the control her stepfamily had over her.
* Resignation: Deep down, Cinderella may have resigned herself to the fact that she wouldn't be able to go to the ball.
Remember, Cinderella's exact feelings are not explicitly stated in the story, but these are some likely emotions based on the circumstances.