Dream about being slapped in the face means suppressed emotions that are on the verge of spilling over into your conscious and creating a negative influence in your daily life. You need to exercise better control in certain areas of your life. You are projecting your emotional wounds and painful experiences onto others. Your dream is a clue for the negative aspects of your childhood. Somebody can help you solve certain problems that you are stuck on.
Being slapped in the face dream is a sign for problems and issues that you have ignored or avoided for too long. You do not have all the facts to make an informed decision about some matter. Perhaps you feel that you are no longer important and wish to regress back to a period where you were more needed. This dream is sadly an alert for your passive aggressive tendencies. You feel the need to protect yourself against negative influences.
If you dreamt about being slapped in the face:
You may find it all too easy to lose your patience as everyone around you, including your love interest, seems to have lost their marbles and most of their brain, as well. The position of the heavenly bodies implies mistakes and misunderstandings, and plenty of them. Don’t react to an apparent insult, as it probably wasn’t meant. And if it was, you couldn’t be sure of that either, so keep cool!