You don't have to express your meaning. Sometimes, you copy your signature because it sounds good, and then you don't have to change it because you are too lazy or have no time to change it. Also, since we have broken up, why should we care if she liked someone else at the beginning? Finally, it's not that you like someone else, but that your love ends with your betrayal. Then why do you doubt whether she betrayed you? Finally, I can see that you understand the meaning of this poem. Maybe you just want to make an excuse for your betrayal.

PS: I don't blame you. I know what you are thinking. In addition, I think the betrayal of love is too normal and abnormal. This is my view of love, don't care.