I have found that when someone innocently causes another person to be hurt, an offer of remorse and reconciliation can correct it. Often when we try to apply some humility and forgiveness to the experience, instead of hiding the pain in the back of our memory, it will begin a healing process that eventually gives us freedom to carry on with life. We don't have to allow the hurt to continue its control over us. We have the choice. There may be a possible reconciliation too if we are sincere in our offer of forgiveness.
Perhaps while reading instances of emotional pain suffered in my life, some of them may become a means of help and healing for you.