What if a girl replies to your text message in time? Is there any drama?

The situation you gave is too simple. It can only mean that she does not hate you. The rest will depend on her personality or other behaviors. If you think she is worth your while, then develop slowly. But it will happen before you succeed. There is a lot of melancholy. If you think she is not worthy or you don't want to feel melancholy, don't develop it further. It won't take a long time for you to have no feelings for her. Take it easy and take advantage of it before it's too late.