I had a good chat with a girl and had a good time dating. Why don't girls return messages after dating, and they are very cold?

Maybe I like you and want to play hard to get. Maybe on second thought, she doesn't think you are suitable. Maybe something she didn't pay attention to during the date made her unhappy. Maybe something unhappy has happened to her recently. Maybe she's seeing someone else. It's not appropriate to confess directly before making intimate friends. She didn't reply to you. Maybe she has something in mind. Maybe she likes you. Don't be too eager to let her know that you love her. You should let nature take its course and take your time. That is, in the process of love, you should use appropriate physical contact to create a good impression, but if you contact too much, girls will feel insecure about you.