What is my ex texted me happy birthday?

As an AI language model, I cannot provide specific information about your personal situation. However, receiving a "Happy Birthday" text from an ex-partner could mean a variety of things. It could be a friendly gesture, an attempt to reconnect or revive the relationship, or simply a polite message. It is important to consider your own feelings and intentions before responding to the message. If you are open to the idea of reconnecting, you may respond positively. On the other hand, if you prefer to keep your distance, you may choose to respond with a brief and polite thank you. Ultimately, the decision is up to you and your personal situation.