Boys are dumped by the same person twice. What psychology?

It must be very difficult psychologically. This way: from now on, start aiming at new targets and use her as a spare tire. Remember, be emotional, or you can't do it well.

Talk about one or two main goals. For this predecessor, only treat her as the third prize.

Send a joke or two to your ex every week. If it's WeChat, send a funny video. If it is qq, send it to funny pictures. Don't say anything after sending it. If she gives you an answer, ignore her. Wait for her to reply, or take the initiative to find you again, and then give her a symbolic reason. To show that you don't care about her very much, it doesn't matter whether you have her or not. You can do it. Don't show enthusiasm for her.

This girl takes you too seriously. It's good for you to stimulate her conquest in this way.