Deleted my WeChat after my girlfriend broke up. What psychology?

I think if your girlfriend deletes your WeChat after breaking up, it's because she thinks it over and doesn't love you anymore. She is a decisive and neat girl.

In the girl's mind, it is: if you break up, you will break up completely. Do not break up. Even if you see your name, she will be sad, so she will seal up everything about you, hide it from herself, delete it all, and let herself forget you when she wants to find it in the future.

If you really still love her, then I hope you can finally talk to her and try to see if there is any hope for you two to get back together, otherwise you two will really part ways and may never see each other again.