The first time I sent flowers was rejected, and today she sent me a text message.

You've only known each other for less than a week. Sending flowers is too fast. People will think you are casual.

You must have a chance. She hasn't rejected you yet. You should get along with her first and be friends. It's really good for her when you get to know her. She will know your heart and send flowers to show her love. That will be a play.

Note that introverted girls will not be so open and only secretly like you. You should take the initiative and be thick-skinned