I like a girl. She was very enthusiastic when she saw me, but she seldom replied to me when she sent me messages. Even if she did, it was only a few short words. What the hell does she mean?

Prove that others have no feelings for you, and you misunderstand their expression. Satisfying your enthusiasm is a kind of accomplishment, and respect your performance. But simply replying to your message proves that I don't want to talk to you too much and deliberately keep my distance. Therefore, if you want to continue to be friends, you should also keep a good attitude. Don't push too hard, it will backfire.