Unless the show closes before her leave is over, she's going to return as far as I know.
I'm not sure about her mail, but I don't think they forward it. I'm guessing it sits at the theater until she goes and gets it. Though, if you want to wish her well you can e-mail her through her website.
l love you without knowing how... or when... or from where.
I love you straightforwardly, without complexities or pride.
I love you because I know no other way than this.
I believe in fate
But it's up to us to follow through