Girls don't send friends after breaking up. What psychology?

She didn't send a circle of friends after breaking up, so did she often send a circle of friends when she didn't break up before? Some girls don't make friends very much, which shows that she just doesn't like to make friends. Most people have mood swings and will definitely vent in the circle of friends, which only shows that this girl may be particularly rational. She doesn't think it makes sense to post these in a circle of friends, but if some people are more emotional, they will post some on them and then attract the attention of their predecessors. It is also possible that she completely let go of her predecessor, and she has deleted her predecessor's WeChat.