So if you are offering your gift at the altar and there remember that your brother has something against you, leave your gift there before the altar and go. First be reconciled to your brother, and then come and offer your gift. ~ Matthew 5:23-24 (ESV)
If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother. ~ Matthew 18:15 (ESV)
You’ve experienced a wounded relationship before, I’m sure, and found nothing pleasant in it. Jesus gives us some good instruction for healing those wounds. Notice who is to take the initiative - we are. Whether we are the one who is wrong or the one who has been wronged, Jesus expects us to make the first move. Notice also that we are to go to the other person, not a third person (or social media for that matter). This short circuits embarrassment and gossip by keeping the circle of those affected at a minimum, at least initially.
Are you willing to acknowledge your own wrongdoing? Are you willing to give someone a chance to apologize before you air his or her shortcomings publicly? Just think how much emotional turmoil could be avoided by practicing a little humility in our dealings with others.