That was then, this is now. Holding onto a grudge is not good for the soul. The person that you might be upset with probably has forgotten about what really happened.
Sometimes life can be like an unsolved puzzle. Jesus can solve your missing pieces. Being in Jesus's will makes a huge different.
Life obstacles can make you a stronger person, if you choose to be. I know, I am wiser now through all of my trials and tests. Tough times were abroad. I made it through with Prayers and Faith. I am a survivor. You can be one too.
Some people might judge a person by what other people have said about them. Not really knowing that person at all. Do you really know them? Or, just going by what someone told you? Jesus will be the final judge. Do we really know ourselves? IF in Christ we are a new person.