Childish Friend Cried Abuse, But Panicked When I Reported It

My best friend, the one with the baby-girl act, came running to me with her face covered in blood, crying and begging for help. "Carolyn, baby's so hurt, baby wants a divorce. I should have listened to you back then and never married that monster." When I learned she'd been locked up for half a month and beaten every single day, my heart ached for her, so I put in all the time and effort to gather every piece of evidence for her. But the moment we stood in court and my best friend heard her husband say he'd been wrong, she went soft all over again.