Wife? #GMB
Maybe you would react all emotional but at the end of the day a bytch gone be a bytch. I'm 99% positive there was signs before that day that homie chose to ignore.
You can't allow that shyt to happen right in front of you without doing something.. anything.. otherwise You're not really a man. You're that guy who just stood there while his girl gave head to some dude in front of everybody.
It's not even about the hoe, it's about you minimizing the damage to your rep.
He pulled that bytch up by her weave, which was humiliating for her. If he followed it up by dumping her in the spot, I'd say he handled it perfectly
Simply walking away would give the impression that you're hurt, weak and helpless. If you try to laugh it off and pretend like it's nothing, every man and woman in that place will see you as a sucker.