Short answer
A husband should listen carefully and try to understand what has contributed to the emotional distance rather than immediately dismissing or defending himself.
Islamic Guidance
What Islam teaches
Islam instructs husbands to live with their wives in kindness. Emotional concerns should be addressed with patience and good character.
Practical Guidance
What you can consider
Ask what she needs, listen without interruption, acknowledge legitimate concerns and work together on practical changes.
Sources
Qur'an 4:19; Qur'an 30:21.