Sahih Muslim - Book 16, Hadith 145
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Abu Sirma al-Khudri (Allah he pleased with him ) reported Allah's Messen- ger (ﷺ) as saying: The most important of the trusts in the sight of Allah on the Day of judgment is that a man goes to his wife and she goes to him (and the breach of this trust is) that he should divulge her secret Ibn Numair narrates this hadith with a slight change of wording.
How the Prophet ص modelled this behaviour here
Protective Care
“and the breach of this trust is that he should divulge her secret”
Protects his wife's safety, dignity and wellbeing, and stands up for her.