Yesterday, a girl posted a circle of friends. Today, I read and commented. After reading my comments, she deleted this circle of friends. What do you mean?

Because you commented on a question mark, which made her very angry. A question mark is an expression to laugh at or think that someone's behavior is great. So she sent a question mark to a circle of friends, which was a bit rude. Don't send it if you don't understand. Is the question number to explain to you? So people simply deleted it, which means they are too lazy to explain and don't like being alone. But the way I express it obviously annoys you.