Can envy be a cause for separation between spouses, especially if a woman was envious of a man who married a girl she wanted for her son, and it ended with the girl separating from her fiancé after their marriage contract?

Matters such as envy (hasad (definition)), the evil eye (ayn), and magic (sihr) are external factors that can spoil a marital relationship and lead to divorce and separation. Envy is a disease of the heart that afflicts the envier with worry, grief, and sadness, and it can cause significant harm to the envied. It differs from the evil eye in its means and origin: an envier may envy something they have not seen, whereas one who inflicts the evil eye only does so upon what they see. As for the evil eye, it is the gaze upon something with admiration and the intent to harm it; it is real, and its effect occurs through a malicious soul. These matters play a role in the disappearance of blessings and the occurrence of calamities, and they can be a cause for divorce.