What is my ex is mad at me for dating someone else?

As an AI language model, I do not have any personal information about you or your ex, but here is some general information on the topic:

It is common for people to feel hurt or angry when their ex moves on to date someone else, especially if the breakup was recent or if there were unresolved feelings. Your ex's reaction may also depend on the circumstances of your relationship, such as if you ended things on bad terms or if they still have feelings for you.

It is important to communicate with your ex and try to understand their perspective. Be respectful of their feelings and give them space and time to process their emotions. It may also be helpful to set boundaries and agree on how to interact with each other moving forward.

Ultimately, it is important to prioritize your own happiness and not feel guilty or ashamed for moving on with your life. It's natural to want to find love and companionship after a breakup, and you should pursue those feelings without feeling guilty.