ANOTHER QUES!!! How does a close female friend behave if they're in love/have feelings for you?

Whatever she says is what you go by. If she said she is not interested then accept her answers. Don't take no for yes. Get in trouble that way. Just tell her, alone with no one else there, that you know or believe that she wants you and that if she didn't why is she behaving the way that she does. Tell her you will give her a time frame to make up her mind or the two of you will just be friends. She will start to think seriously about it and keep her intrigued. If she does not give a favorable reply, move on.