If a person has done something to wrong another person, and wants to make amends, I know he is supposed to apologize. But in this case the person he wronged doesn't know he has been wronged – and if he were to learn about it, would be deeply hurt. What should be done?
The Aish Rabbi Replies:
If it will embarrass the person, one should not mention the reason for the apology. He should just apologize generally for any wrong he may have done to him. (source: Mishnah Berurah 606:30)