Pope Shenouda writes:

One of his brother monks offended him very deeply so that he
came and said to me: “Should I go and tell him off ! “
So I said to him, “If his conscience is alive he will come of his
own accord to apologise to you. Otherwise there is no use in
telling him off. It will probably make this end up worse.
However, if he is really ignorant of the seriousness of what he
has done, it would be better for a third party to intercede
between you in this matter, to explain to him the extent of his
offence.
Whatever the case, it is better for you to wait, and who knows,
you might be lucky enough to forget him and forget his
offence!”