Final answer:
When faced with the situation of discovering something you told your friend in strict confidence is on a social media website, it's important to express your feelings, consider your friend's intent, engage in private discussion, and reflect on future sharing.
Step-by-step explanation:
Discovering that something you told your friend in strict confidence is on a social media website can be upsetting and concerning.
When facing this situation, it's important to consider the intent of your friend. Did they share it intentionally or by mistake? Talk to your friend privately to understand their intentions.
You should also reflect on future sharing. Be cautious about sharing sensitive information in the future and consider privacy settings on social media platforms.