Have you ever betrayed someone, or have been betrayed yourself?
That is if you don’t mind sharing a few details. No need to, of course.
Have you ever betrayed someone or stabbed a friend in the back? What was the reason, how did you reason the action, and how did it make you feel after? What came from this?
If you have been betrayed, why did it happen, if you know why, who was it and why did they do it? How did this make you feel, and what was the outcome?
Either way, what did you learn?