What is the way for a wife to remain steadfast in her increasing faith, and what should she do with her husband who has started to gradually distance himself from her because of this change?

The wife must address her husband's deviation with wisdom and persistence in guiding and advising him with a gentle approach, choosing appropriate times for this, and utilizing religious admonitions while encouraging him to perform acts of obedience. She must adhere to her religion, seek sacred knowledge, choose righteous companionship, and not obey her husband in anything that constitutes disobedience to Allah.