Facebook Dating is a feature within the Facebook app that helps users find romantic matches. However, some users have reported issues with the feature not showing up or disappearing from their app. The reasons for these issues can vary, including outdated versions of the Facebook app, unreliable internet connections, or Facebook Dating not being available in certain regions. Additionally, Facebook Dating may experience outages or server issues, which can cause the feature to disappear temporarily. If users are experiencing issues with Facebook Dating, they can try updating their app, checking their internet connection, and turning on notifications for Facebook. If the issue persists, users can contact Facebook for help or consider uninstalling and reinstalling the app.