The Strength card indicates that Nadia's thinking is focused on being fair in the relationship and on finding a balance. Her desire is to find a compromise that can satisfy all parties involved in the situation.
The King of Pentacles indicates that Nadia is experiencing a strong sense of security in the relationship and great emotional stability. She is trying to build something lasting with her cousin and she wants this relationship to be solid and well established.
The last card, the reversed Seven of Wands, indicates that Nadia needs to gather more courage in taking concrete steps to improve the relationship with her cousin. She needs to be more enterprising and know how to adapt to circumstances, otherwise she may be afraid of changes or difficulties that may appear in the relationship.
In conclusion, the tarot reading suggests that Nadia should work on building her confidence and self-esteem, as she has a strong emotional bond with her cousin. She should also take more initiative in the relationship, not back down from any changes and difficulties, and try to find a balance between her needs and the needs of her cousin.