Pray That They Return
A related passage in Menoras Zahav says the way to deal with those who trouble you is to pray for their return, and to rise early for their sake.
In the same passage the compiler explains a puzzling reply from the Gemara. Mar Ukva asked how to deal with people who were causing him distress, and Rav Elazar told him to be silent before Hashem and to rise early and stay late at the beis medrash on their account. The compiler asks why Rav Elazar did not mention Bruriah’s teaching that one should pray that sinners “return in teshuvah.” His answer comes from the earlier idea of the ladder. Praying that someone return means drawing him up toward yourself, and Mar Ukva feared that he could not carry such a person without the man falling lower. So Rav Elazar offered two paths. If you cannot bring yourself to pray for them, Hashem will deal with them. If you can, rise early and stay late on their account, and they may come back on their own.
Source: Menoras Zahav, Bereishis, Parshas Toldos (compiler’s gloss on Bereishis 27:44–45; cites Gittin 7a and Berachos 10a)
Think of someone who has caused you trouble, and do not try to fix the relationship today. Simply spend one minute in your davening asking Hashem to help that person return to what is good in them. Use their name. If you cannot yet mean it, ask that you may one day mean it. You are not excusing what happened. You are choosing not to let it be the last word about them.