It brings me no joy to write that my link post to What You’re Saying When You Give Someone the Silent Treatment remains perennially popular here. Here’s Arthur Brooks from his email newsletter on the same topic:

As a reaction to disagreement, the “silent treatment” is about the worst choice possible for everyone.

People who ruminate on a conflict with their partner—turning it over and over in their mind—are especially prone to punitive actions, including the silent treatment. Try not to get stuck perseverating on the dispute, and use your words instead.