If my ex-boyfriend still talks to me too much after breaking up, how can I say harsh words to him and teach me a lesson?

In fact, a cold smile is the most powerful means. The saddest thing in all love is indifference. Whatever your ex-boyfriend says to you, it doesn't matter. The important thing is that you are still inextricably linked, and the most cruel thing is that your indifferent eyes have left each other's lives. In fact, since we have broken up, why should we consider each other's feelings, whether good or bad? If you still want to be together, just put down the so-called face and talk about it. If you really have no feelings. Be kind to the past.