When my boyfriend broke up, I calmly agreed and deleted his WeChat. He added me when he found out, and then sent a text message to make friends with me.

Boyfriends must have broken up for a reason. You agreed calmly, calmly and assertively, and then deleted his WeChat. This is also your decisive performance. Now he adds you and sends a text message saying that he wants to be friends. In fact, if you don't want to be lovers, you'd better not be friends.