Musar על אבות 2:13

And if so, how much should one be ashamed of himself when he knows in his soul that he is the cause of the machloketh. For if one's friend calls him "wicked," even between the both of them [i.e., not in public], where he is not put to [public] shame because of this, still, he will pursue him to his very life because of this. How much more so, this one, who caused himself to be called wicked because of this [machloketh] — how much shame and humiliation will be his lot above thereafter, when his [formerly] good name is bruited thus above in the Heavenly assembly before thousands of thousands and tens of ten thousands of holy encampments! As the holy books write, all of a man's affairs are proclaimed and publicized above in the presence of all [aside from his punishment for the machloketh itself]. And this is the intent of (Avoth 2:13): "And do not be [called] wicked in your own presence."