Dear Ex bestfriend
I know you'll never see this. You changed so much. The friendship I thought we had wasn't real. I was always there for you but you were never there for me. And the one time I needed to most, when I was breaking down in tears. You were so busy with your other friends that you couldn't take a second to message me back. But if that was you, I would've messaged you in seconds. You broke my heart, you say you're my sister. But you really aren't. Goodbye.