DD has said that they think a classmate is self harming due to seeing deep scratches on their wrist. When asked about the scratches the girl said it was her cat but DD said they didn't believe this as the scratches looked deep and repetitive with dried blood on them and the girl has said several times that she's struggling emotionally. She is 13 and has gone from being very demure and quiet a few years ago to an aggressive bully in the last three years. She told DD that her parents (who seem nice on the surface) hit her, her brother who is two years older was also acting out a lot, swearing and talking about pornography constantly. The girl we're concerned about has been emotionally abusive to DD multiple times which has been very difficult but also confides in her. DD is concerned about the scratches but asked me to promise not to tell anyone, she says if she notices things getting worse over the next few days she will contact a support line for advice on what to do. Do you think I should speak to their teacher about this? I don't want to lose DD's trust but it sounds concerning to me. They had a class talk about mental health yesterday so I'm hoping this girl may reach out to the school counsellor for help. I haven't had much luck getting support from the school in the past so not even sure if raising this would help...
What do you think?