It could potentially convey the message of hope. No matter how tough the situation is, there could be a glimmer of hope for a better future. For example, she might find a new community or a new purpose in life. Also, it might show the importance of female empowerment within the context of Mexican culture. That women can rise above the labels and limitations society tries to put on them.
The stories might carry a message about the importance of cultural heritage. Even in a difficult life, the main character could hold on to her Mexican roots, and through that, find a sense of belonging and identity. It could also be about the power of human connection. That she forms meaningful relationships with others that help her through the hard times, and these relationships show that kindness and support can exist even in a less - than - ideal situation.