To dream of betrayal represents feelings of disappointment or being let down. Having wasted your time trusting someone. Unexpressed or “bottled up” feelings about being deceived.
Negatively, betrayal may reflect a heightened degree of suspicion you feel for a person, relationship, or situation. Insecurity about major commitments.
Alternatively, a dream may reflecting feelings about self due to bad choices. Feeling that you gave into temptation. Giving into last minute temptation after expecting to be impervious to temptation. Self-pity or feeling sorry for yourself.
Example: A woman dreamed of being betrayed. In waking life she was on a diet and gave into temptations to eat junk food. She felt that she had betrayed herself and was disappointed in herself.