The aspect to consider for acceptance concerns the reversed Page of Pentacles card. It represents a situation in which one feels blocked emotionally and economically. The niece may feel trapped in her decision to marry, and therefore she may not be aware of the real risks involved in this marriage. This can lead you to make hasty decisions that will ultimately lead to pain and discomfort, especially on an emotional level. Thus, acceptance of marriage could be negative in terms of mental health.
The other card to consider is Death. This card indicates a radical change in the granddaughter's life, and can also represent a moment of transformation. In this case, the niece may refuse to marry because she recognizes that it's not the right step to take at the time. You may be aware that you are making a decision that will lead to further suffering in the future. Furthermore, refusing marriage would allow her to preserve her mental health, as she would avoid making hasty decisions.
In conclusion, considering the reversed Page of Pentacles and Death tarot, it seems that Valentina would be happier if she refused marriage. Taking into account the orientation of the cards and the aspects indicated, it seems that refusing marriage is the best option to preserve her mental health.