When a friend doesn't believe you, here are some suggestions to handle the situation:
First, have an open and calm conversation. Try to explain your thoughts and actions clearly and sincerely. Let your friend know that you are being honest and have no intention to deceive.
Second, provide evidence or examples to support your s. If possible, show them facts or references that can prove your point.
Ask your friend to share their reasons for not believing you. Listen carefully and try to understand their perspective. This can help you address their concerns more effectively.
If the issue is complex or emotional, give your friend some time and space to think. Don't be too pushy or forceful.
Also, consider eking a neutral third party for help, such as a mutual friend or someone both of you trust. They might be able to offer a different perspective and help resolve the misunderstanding.
Most importantly, remain patient and keep the lines of communication open. Friendship is built on trust, and with effort and honesty, you can work through this difficult situation and restore your friend's belief in you.