Several mentalities of your predecessor's request to add you as a friend.
Some are more open-minded and feel that they can still be friends after breaking up. Maybe it's because I think we can do something to help each other in the future. It's not worth breaking up and not talking. Some feel a little reunited. And it's normal for young couples to be on and off. It is impossible not to quarrel, and it is not impossible to break up in a rage after quarreling, so we should cherish the people in front of us.