This is something I wrote a while back:
Dear friend,
Thank you for being there for me for many years
You have kept me from feeling lonely and isolated, bored and sad
You've masked my pain by helping to numb my brain
You've helped me when I have felt insecure and not very confident
You have helped me to take my mind off life’s problems
Dear friend, I'm sorry I abused you and asked for more than you could give
I thought you loved me, I thought you cared
Instead I learn you have slowly but surely been poisoning my body and soul
Dear friend, I've been thinking a lot recently and changed my ways
I've realised that I don't need you around anymore
I can stand on my own two feet
There’s no room for you in my life anymore
I have met a new friend, who has taught me a divine love
I've encountered a spiritual breakthrough,
God will always be with me, by my side.
Goodbye, Dear friend