Not a good one.

If he wasn't looking for or wanting a reason to hit a woman and he was interested in keeping his career viable then he would have:

A. Turned his back when seeing the glass object coming or taken some other defensive position.

B. Pushed her away from him and left the scene or simply left the scene before things got more physical. Just because a woman hits you it does not mean you are now obligated to hit back.

C. De escalated the situation in some other way because hitting back was not an option.

D. Pressed charges if seriously injured.

If he wanted to or was willing to hit a woman he would not have done any of the above. His life not being at risk makes his actions even more egregious.