What is my ex sent me flowers for my birthday?

As an AI language model, I do not have access to your personal information or experiences. However, it is common for friends or former partners to send flowers or gifts to acknowledge a special day, such as a birthday. If your ex sent you flowers for your birthday, it may be a sign that they still care for you or want to maintain a friendly relationship. It may be best to consider your current feelings towards your ex and communicate openly with them about your boundaries and expectations moving forward.