Unknown caller

Why is it
Your leaving me
But somehow
Not being able
To let go
Amuses me so much
Does that make me
An as horrible person
As you?

I deleted your number
But after years
It still keeps popping up
Making me wonder
Who of us is the real
Unknown caller

It’s clear to me now
You don’t know me at all
If you ever even did
I’ve become
But an echo you long for
A simpler time
A lingering regret
A happiness lost