The two that couldn't be

During their parents' affairs as young children Evelyn and Amethyst became close bonding over family traumas. Once they were older they slowly started realizing their deep connection and love for one another. The only problem is because it is forbidden no one can know the two princesses love each other. But the question is; Will they be able to love each other in peace as rulers together or will they fall apart because of the public's preferences?