After a blind date with a girl, I took the initiative to chat with her when chatting with her. Sometimes she replies, sometimes she doesn't reply, and she feels indifferent.

First of all, it can be seen from your description that this girl may not like you, but she should have no other suitors for the time being, so she is still keeping in touch with you. If a girl really has feelings for you, she will definitely reply in time and take the initiative to find you, so her performance may be a euphemism for rejecting you. If you feel uncomfortable getting along, you can also express your thoughts directly with the girl and see how she responds. If she really doesn't like you, let go as soon as possible. After all, everyone's time is precious. Don't waste it on impossible people.