What is ex unfriended me?

As an AI language model, I don't have access to your personal information, so I cannot know if your ex unfriended you on social media. However, in general, if someone unfriends you on social media, it may be a sign that they no longer want to maintain a digital connection with you. There could be many reasons why this happened, including a personal beef or a simple desire to move on from the relationship. It's important to remember that social media is not always reflective of real-life relationships, so it's best to communicate directly with your ex if you want to know why they unfriended you.