APAD: least said, soonest mended
least said, soonest mended:
Hurt feelings are most quickly healed by not discussing (revisiting) the event giving rise to the hurt.
When we do or say something bad to someone, a long apology and discussion does not help. In such a case, the less we say the better.
“Least said, soonest mended”
― Charles Dickens, David Copperfield