What should someone do if they unintentionally hurt someone's feelings through a prank about a personal matter they were not aware would cause pain, and are now being blamed by others and feeling anxious about it?
Such person who caused pain to other person must do everything possible to seek pardon and forgiveness from the person who was hurt even if it happened unintentionally. Hurting heart of a Momin is more dangerous than breaking the Holy Ka'bah into pieces.
Wassalam.