Ex hasn't spoken to me?

I broke up with my ex girlfriend on good terms. It hasn't been that long since we broke up. I thought she'd contact me in some way but she hasn't. Why is that? She didn't really want us to break up and now she is just not talking to me. I sent her a text once and she responded, but she hasn't initiated any contact. Why? What should I do? And/or what is she trying to do based on her actions?
Updates
+1 y
Mates told me she's been going out and doesn't look sad at all. I don't understand how she can be so happy when she was so upset when we broke up. Don't get me wrong, I'm happy that she is happy. I'm just very surprised at her behavior
Ex hasn't spoken to me?
Post Opinion