I don't know if I said something wrong or did something wrong. The girl didn't reply to the message and couldn't find her for two or three days. What should I do?

Do you like her? Are you two together? Does she like you? Do you believe in the love between you? Since she didn't reply and didn't see you, it means that she loves you, or likes it, or doesn't like it, or is not firm. No matter how you look for her, there are only two possibilities. One is that you don't know her well enough, which leads to a blank in your life track and interpersonal relationship, which leads you to want to find it, but you don't know where to start. If so, you can only say it's unrequited love. She doesn't care about you at all. Second, you know her well, know her life track and her interpersonal relationship, but you still can't find her, which is a great possibility. She has either gone back to her parents' home or something has happened, so she called her mother or called the police at this time, but I guess you are the first kind, commonly known as unrequited love. If two people love each other, they will never disappear without returning the news, because she knows that the man will be worried. A man will never disappear without sending a message, because he also knows that she will be worried. Only people who don't care about you will disappear. Only when their position in other people's hearts is insignificant will she care about you, which only shows that you have no position in her heart. This is why there are so many so-called dog licks in this society. Two people in love are like your parents. No matter how they quarrel, they will make up the next day. She or he will still care about him and worry about him. There is also a red line between lovers.