I texted my ex-husband to get back together, but he didn't call me back. What do you mean?

There are many possibilities for your ex-husband not to reply to your text messages. Here are some possible explanations:

1. He hasn't decided how to reply: Your ex-husband may still be thinking about how to reply to your message, he may need time to think about his feelings and thoughts, and he may also need to think about whether he still wants to be with you.

2. He doesn't want to reply: Your ex-husband may not want to reply to your message, he may have accepted the fact that you broke up, or he may have found something else to be busy with.

3. He doesn't want to get back together with you: Your ex-husband may think that you are over, and he may have accepted the breakup and don't want to be with you anymore.

No matter what his idea is, the best way is to respect his decision and give him some time and space to think. If you want to know his thoughts, you'd better talk to him directly, so as to better communicate each other's feelings and thoughts.