Yeah, we'll have to agree to disagree. Like I said in an earlier post, the author has shown multiple times throughout the story that he doesn't put up with anyone doing anything to him, his family or his friends, and that includes simple threats, as well. And not only did they take the "revenge" too far with the foot thing, but Zara even threatened him which, again, I feel like a broken record here, the author has shown multiple times is a no-go for the MC, yet here he just lost his spine and let it slide for obvious plot reasons which is just lazy writing.
Either way, we'll see how the author handles it in the next update. I expect nothing less than the MC destroying Zara for such a humiliation, anything less than that and this story really will be a disappointment.