Simply replace the unfilled areas such as "" and "[date]" with your information.
I'm sorry to do this like this, but I didn't know how else to put it. I think we've had a good run, haven't we? My heart's just not in it anymore though. I like you, I like us, and I legitimately hope we can be friends. But I just don't feel this thing anymore. There's no particular reason. Nothing you did or didn't do. And no, there's no one else.
I think it's just time to move on.
Don't be a stranger, okay?