I will never condone hitting a woman as long as it’s avoidable and your life isn’t at risk. The guy simply could have walked away. You don’t retaliate by punching a woman when she barely slapped you for whatever reason we don’t know.
How come this fellow never pinpoint on the behaviour of the women. This is exactly why women behave this way, you allow it. That guy is not wrong at all, the women should not behave like this.