What the return is for
The return is half the technique, and it is the half people drop.
The Qur'an does not stop at not retaliating. It describes repelling with what is better, and the outcome it names is a changed relationship rather than a point scored. That is the shape of a return: you come back and you do the better thing, which is usually much smaller and much duller than it sounds. You finish the conversation. You say the thing you actually meant. You apologise for the volume without attaching a but to it.
Qur’an and Sunnah
وَلَا تَسۡتَوِي ٱلۡحَسَنَةُ وَلَا ٱلسَّيِّئَةُۚ ٱدۡفَعۡ بِٱلَّتِي هِيَ أَحۡسَنُ فَإِذَا ٱلَّذِي بَيۡنَكَ وَبَيۡنَهُۥ عَدَٰوَةࣱ كَأَنَّهُۥ وَلِيٌّ حَمِيمࣱ
Good and evil cannot be equal. [Prophet], repel evil with what is better and your enemy will become as close as an old and valued friend
Qur’an 41:34
Translation: M.A.S. Abdel Haleem, The Qur'an, Oxford University Press, 2004.