Joyce Lopez was able to confirm that the woman related to Bryan Hawkins was Carolline Ruiz right in front of her, thanks to Matilda Ferguson, the crazy woman.
She really didn't expect Matilda Ferguson to come to her proactively. She thought, or perhaps everyone thought, that after she had suffered such a scandal, she would definitely find a hidden place to hide herself.
However, before Matilda Ferguson could completely hide herself, she was still unwilling. Perhaps it was a woman's intuition that made her feel that Joyce Lopez, who shared her misfortune, could help her. So she found Joyce and told her everything she had suffered.
Joyce believed some of it, but not all of it.
So, when she saw Carolline Ruiz coming in, she noticed her immediately. She didn't expect their seats to be close, and her conversation with Raymond Ruiz was loud enough for her to hear clearly.