"I love you, Savannah, and I always will," I breathed. "You're the best thing that's ever happened to me. You were my best friend and my lover, and I dont regret a single moment of it. You made me feel alive again, and most of all, you gave me my father. I'll never forget you for that. You're always going to be the very best part of me. I'm sorry it has to be this way, but I have to leave, and you have to see your husband." As I spoke, I could feel her shaking with sobs, and I continued to hold her for a long time afterward. When we finally seperated, I knew that it would be the last time I ever held her. I backed away, my eyes holding Savannah's. "I love you, too, John," she said. "Good-bye."
"Our story has three parts: a beginning, a middle, and an end. And although this is the way all stories unfold, I still can't believe that ours didn't go on forever."

Nicholas Sparks in "Dear John"