The abuser uses very insidious tools to confuse and exhaust their target emotionally to the point where they simply go along with whatever the abuser says to stop the abuse.

This abuse typically gets increasingly more aggressive as time goes on.

Gaslighting is one of the most common, but not limited too, tactics used in these cases.

The constant use of anger or threat of danger would be another.

Or even using social stereotypes such as shaming men that they are weak for asking for needing help.