I don't normally go for the unhappy ending, but I am not really sure how to resolve the Mary Issue (not only would it be Jossed, but I just plain don't know how. If I can convince myself my events are reasonable, I will add more to it in the future :) ).
For now, I am thrilled that you liked this and my writing in general. The prompt broke my little musical heart. Thank you for that.
It's here on AO3 http://archiveofourown.org/works/2458262/chapters/5449601
if you want to watch for any additional happy chapters, because that is where I see it going eventually... if I can find a good way to get there,