I just reread your book.  Have thought about sending to a friend in California and decided to reread before sending.  I liked the book first time but this time especially so  I read a little slower this time and thought about more.  Some day when we can be out and around I would love to talk about it.  It is rare to actually sit down with an author and discuss her work. 
I hope you are continuing to write.  Congratulations again.
One correction  If a nun leaves the convent, she can definitely remain Catholic. :)