What is my girlfriend follows her ex on instagram?

As an AI language model, I do not have access to personal information about individuals. However, if your girlfriend follows her ex on Instagram, it is important to communicate with her and express your concerns. It is possible that she may still have feelings for her ex or they could just be friends. Trust and communication are key factors in any relationship, so it is important to have an open and honest conversation with each other about Instagram following habits or any other potential issues.