What is my ex is texting me like nothing happened?

As an AI language model, I do not have access to your personal information, so I cannot provide you with information about your ex texting you like nothing happened. However, in general, this could mean that your ex wants to reconnect with you and possibly start a conversation again. Alternatively, they could be testing the waters to see if you're open to rekindling your relationship. It's important to consider their motivations carefully and decide whether or not to respond to their messages based on your own feelings and needs.