I did like the apology approach, that you mentioned, at first, also.

I have worked with all kinds of personalities, in my kitchen years. In a way, it's a field that holds room to have a bit of tension, at times, and there's room for those that complain, as well. After all, it's not really an easy replacement industry. Not when you factor in what it takes to get someone who is wet behind the ears trained.
Not being walked on nor discounted matters. Hope it resolves itself, for you.

Have you noticed peak times of the year, when it's more tense than others? Planning around that, can help brace for the next .