If the predecessor cries, the incumbent loses. How to understand this sentence?

I don't like it. You are a substitute for your predecessor, so it is natural for such a boyfriend to go as far as he can. I am no substitute for anyone, but I am who I am. Since I can't let go of my ex, don't bother me, so I want to get as far away from here as possible.

First of all, I want to say that this man's character is really not so good. Why do you say that? He already has an incumbent. If he is a boy with a good personality, he won't find the current one when he is still in love with his predecessor, because it is unfair to others' current ones, isn't it? Since you still love your ex, you should be alone, and then wait until you really let go of each other before looking for your current one.

But he still loves his predecessor, but he stays with his present because he doesn't want to be lonely. Is such a person good in character? If I meet such a boy, I can only say that it is light not to beat him, then whose feelings I am playing with.

Moreover, if a boy wants both his present and his predecessor, who does he think he is, a prince or an emperor? Does he think he is so awesome? Seeing that my ex is crying for me, I still have to decide who to choose. Is this person too narcissistic?

If the predecessor cries, the incumbent loses. I can only say that when I was looking for a partner, I didn't open my eyes to have a good look at this man. If this man has a better personality, can he still be with her without forgetting his predecessor? If he were mortal, he would tell the incumbent. I'm sorry, I can't forget my predecessor and I can't accept you for the time being. Such a man deserves to be liked, right?

This man fell in love, broke up with his ex and left, so he quickly found a current one. The girl likes him, and whether she likes him or not, she is with the girl. As a result, his predecessor was dumped and ran back crying, and he dumped his current one to find his predecessor. Get him as far away as possible.