What do you mean by "the most life stain"?

This sentence obviously means that that person can't get rid of it, because everyone who gets rid of it is called his predecessor, and he is not even his predecessor, that is, he can't get rid of it at all. It means that he is love rat, and his predecessor is a beautiful word, and the stain is love rat, which defiles a relationship and destroys the beauty of the relationship.

It means that a person sneers at his ex-lover and says that he is a stain on his life, which means that he hates his ex-lover very much and thinks that he has defiled his life. There is an insurmountable gap between them. And this person clearly told his predecessor to stop pestering himself, and he was extremely disgusted with him.