There’s no excuse for a man to hit a woman. Whatever the provocation, only a coward resorts to violence. It’s also incredibly unwise to attack a woman when her grown up 6ft+ son is standing beside her.
In the following video we see a man and a woman embroiled in an argument. The disagreement gets physical when the man decides to slap the woman in the face. At that point her son gets involved, and lays out the bully in one punch.
https://www.youtube.com/watch?v=hSDNu8qllFQ