After the blind date, I sent three messages, and she would send 1, and sometimes she didn't even reply. She is cold to me. She has only known me for four days. What should I do?

There are four possibilities in my mind, 1 that she obviously doesn't like you, 2 that she wants to catch your appetite, and 3 that this girl is not good at expressing herself, and people don't know how to reply to your message (I belong to this category, haha). But she is still hesitant to accept this relationship (because I don't know your information content), so if you are happy with her, please try to deal with these three points. I won't go into details. Generally speaking, since it is a date, the purpose is very clear, that is, to find someone! You can ask her directly what she means now, and continue to develop if you can. If you don't think they are suitable, you don't have to do this. Just make it clear that you don't need to fish there to be friends. And if you have a crush on him, you don't really want to give up, and you think she still has a crush on you, just hesitating. Then go after it boldly. Whether we can catch it or not is another matter. By the way, don't keep sending messages. If your message always doesn't get a response, don't say anything, just call her and ask her out to see if she wants to. You organize your own language, haha! Anyway, I wish you success!