A wife is an amanah entrusted to the husband, and it is his religious, moral and social obligation to uphold everything required for him as a Muslim and as a human being. Islam teaches us to monitor our nafs, and that means to control our behaviour, suppress our anger, and be careful as possible in what we say to others.
The worst of sins is breaking someone's heart and hurting their feelings, especially if it is your spouse.
If his wife wrongs him, or does something he disapproves of, it still does not justify him being rude or hurtful to her. If the relationship is at such a level where verbal or emotional abuse is frequent, they must seek marriage counseling.
The wife should try to seek intervention from elders close to the husband, and she should find productive ways to cease this kind of behaviour from the husband's side. Hopefully, with wise conduct and perseverance, the husband will come to his senses.
With prayers for your success.