In order to move on. Have you read the book the quote is from? Much different than the movie. I've given this book "Five People You Meet in Heaven" by Mitch Albom along with his other book "Tuesday's with Morrie" as gifts many times.
I have to keep remembering that this tough time will not last forever, but instead, God is working behind the scenes, using every experience to create an AMAZING future that will far outweigh this painful time! These are growing pains.