If you have committed a crime and have not yet been arrested or even contacted by law enforcement, you may find yourself receiving a phone call, text, or other electronic message (WhatsApp, Instagram DM, etc...) from the alleged victim. They may be discussing something that occurred. Perhaps an alleged sexual encounter or some other action that would constitute a crime.
If you acknowledge any wrongdoing, you may be incriminating yourself.
Many times when evidence against an accused person is weak, detectives will setup what's called a controlled call or a controlled text where the alleged victim - working side by side with police - is trying to get you to confess to a crime.
If you do confess, then the lack of evidence that previously existed no longer matters. A confession made via a controlled call or controlled message is very significant evidence.
If you have committed a crime, do not discuss that crime with ANYBODY except your criminal defense attorney.
If you are contacted by somebody who is accusing you of wrongdoing, do not admit to anything. Ignore the call or text message and contact a criminal defense attorney immediately.