To what extent is it obligatory for a wife to remind her husband of what is right if his faith is weaker than hers, and what are the limits of patience with him, taking into consideration his causing tension in the marital relationship, his habit of threatening divorce, and his actions that may not be in accordance with Sharia?

A righteous wife can change many of her husband's manners and habits if she adopts a path of wisdom, gentleness, and patience, and chooses the appropriate time for advising and reminding him with kindness and affection, as Allah Almighty says: (Invite to the way of your Lord with wisdom and good instruction, and argue with them in a way that is best), and as the Prophet, peace and blessings be upon him, said: "Indeed, gentleness is not found in anything except that it adorns it, and it is not removed from anything except that it shames it." Some beneficial tapes and books can be gifted, along with recourse to Allah Almighty by supplicating for his righteousness and guidance.