Have you mentioned to your friend that it bothers you when he tells people some things you’ve told him in confidence? He may not have understood that what you told him shouldn’t be repeated. Just talking to him might clear things up.
If that doesn’t help, maybe the best solution is not to tell him any secrets. You can be friends with him without sharing anything confidential. The only safe secret is the one that never leaves your lips. If you don’t want something repeated, then it’s best to keep it entirely to yourself.
Art by: Keith Frawley