"To my dearest John;
It's been years since we last talked and I wouldn't be surprised if you refused to read this letter.
I want you to know that every word I said to you during our time together was entirely true, and if I had to leave was for reasons that had nothing to do with you. I would've never left you if I had a choice.
I loved you. I still do. That's why this is so hard to say, you were my best friend, and much more than that too.
I wished you where here with me, you'll certainly make the pain easier to handle, but you're not, and you won't.
It's probably so disrespectful of me to send you this letter now, after all these years, probably you have moved on, met someone, formed a family, did all the things you couldn't do by my side. I hope you're happy, I do, but if I have to be honest with you my dear, I wish you'd still be here with me, and I hope you still think of me as you used to, I know it's selfish for me to say that, but it's the truth.
Anyway, the point of this letter wasn't entirely to tell you this, there is something much important and worse I need to tell you.
I am dying John.
I am telling you this, not because I want you to feel sorry for me, no, I am telling you this because you were my only friend and the only person I truly loved. I want you to know, that from now on, I will be gone, and it will be real this time. And permaent.
I do not want you to try to find me. And I wish your life continues as it was until you received this letter.
I love you John.
I wish you all the best and I will be thinking of you.
I hope you think of me sometimes too.
Yours,
SH."