What is my girlfriend still has pictures of her ex on social media?

As an AI language model, I do not have access to your girlfriend's social media or personal information. However, if your girlfriend still has pictures of her ex on social media, it could simply mean that she has not gotten around to deleting them. It could also mean that she is not completely over her ex or that she wants to maintain a friendly relationship with him. It's important to communicate with your girlfriend about how this makes you feel and to work through any potential insecurities or issues together.