You apologized for your choice of words and the loss of your temperament. That's all you can do.

You cannot influence an apology and how it is perceived and when it is accepted. Do not make yourself dependent on whether it is accepted by your counterpart. In any culture, the insult is unacceptable and, depending on the person, one takes longer than the other to deal with. However, you will further fuel the conflict, you will give it more food if you put more wood in the fireplace. Means that you a.) keep using his name or b.) keep looking for where he talks about you.

So if you two feed each other, keep the conflict alive, if I take a pro or contra attitude (taking sides), I would also lay logs in the fire.

My advice: Leave each other alone. At some point it gets boring when no one responds to the provocation of the other. Sooner or later the matter will settle on its own.
I wish for the two of you to come to rest and peace. You'll be seen as role models, even if you don't know it. But users do read here a lot but never may show themselves.

As for the rules here, everyone has their own definition of them. There is no consensus on what good or bad content is on this platform. At the moment there is a general mood and assumption here that you shouldn't always write about the same thing (some always write about Steemfest). Now you could go and vote down all the content that you think doesn't meet the requirements (but it's always uncertain what those requirements are). However, there's probably no central place that says you shouldn't do this because there's no central executive that's accepted by all users here on the platform. What is "good" or "bad" content seems to be in the eye of the subjective viewer. The rule seems that there are no rules.

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Which translator do you use? I can recommend to you www.deepl.com (I heard you mentioning that English is not your native tongue. Deepl gives you a certain amount of free translating)