I think whatever she meant by "yet", she will have to be in charge of clearing up. It is obvious that you can't force her into communicating or meeting you from your side and you will have to see what she does with the "yet." I would move on for 6 months, work on finding other friends and activities and maybe in the Fall you will either feel differently about her or she will have contacted you. Whatever she means by "yet" she doesn't mean for you to know (if she knows herself) or she would have told you clearer.