Here is the letter Bella wrote to Edward composing her goodbye to him:
Days later, trying to move on with his life Edward finds the letter Bella left him under his pillow. He instantly knows it's from her, but wonders at its existence. He just thought that she hadn't said goodbye. Opening the letter he realizes just how foolish he was in thinking such a thought.
Dear Edward,
If you're reading this I'm gone and I just want you to know how sorry I am that I couldn't say goodbye. I hope you can understand why. I didn't want to shed anymore tears or give parting words about how one day we'll see each other. It would be insincere and I honestly believe that we never were insincere with one another.
You told me you loved me and I believed you. I want you to know that I will always love you. You are and always will be my first love, the first man I ever said I love you to. I'm not so naïve as to believe that I was your first, but I hope that I'm as unforgettable to you as you are to me. Know this; you will forever have a place in my heart.
I'm also sorry for not talking to you the last few days I was with you. It was childish and petty of me to give you the silent treatment, but I really didn't know what to say. I didn't want to fight with you again and I felt sure that was what we would do. Maybe we could've spent the last few days together and in love, but somehow I'm just grateful for the time we had together.
I can't bring myself to regret any part of my relationship with you. However, I do wish that things could have been different for us. So I leave with you my heart and my love with the hope that perhaps, one day we'll meet again under different circumstances.
Goodbye Edward.
Forever yours,
Bella
When Edward finished reading the letter for a second time he knew that he would never really be able to get over her. She had touched his heart in a way that no other woman ever had, or ever could for that matter. He still hoped that she would be fortunate enough to find someone who could give her the world, a world that he couldn't give her. Yet a part of him also hoped that she was right and they would be again one day.