Woman hits man, man hits back. Is he wrong?

Bre

This discussion came up at work after watching a video where a woman hit a man and he hit her back.

My coworker said the man was in the wrong and he shouldn't have put his hands on a woman. I think the man had every right to hit her back. He was defending himself.

Weren't we all taught that if someone hits you then you hit them back? Why would this be an exception to the rule? Why shouldn't a man be able defend himself against a woman?

Thoughts?