Dreaming of a cousin who has undergone a significant transformation, such as becoming attractive or fit, can symbolize various aspects of your own feelings and perspectives. Here are some potential interpretations:

1. Change and Transformation: This dream may represent a desire for change in your own life or within your family dynamics. Your cousin's transformation could reflect your thoughts on personal growth and the possibility of change, whether in your appearance, mindset, or circumstances.
2. Judgment and Acceptance: It might highlight your feelings about body image and societal standards of beauty. This dream could be prompting you to examine your own attitudes towards weight, health, and acceptance, both of yourself and others.
3. Unresolved Feelings: Since you are not particularly close to this cousin, the dream may indicate unresolved feelings or thoughts about family relationships. It could be a reminder to reach out and connect with family members you may have overlooked.
4. Projection: This dream may also be a projection of your own desires or insecurities. Perhaps you are seeking improvement in your own life, and your cousin's newfound attractiveness represents qualities you wish to embody.

Consider how the dream made you feel and any specific emotions or thoughts that arose during the dream. Reflecting on these can provide further insight into its meaning for you.