Breakup notations

I imagine that you will find yourself in love
You will be happy
You will be bliss
Then one night you wake up
At two A.M. In her bed
Sad, lonely
Thinking how did it all come to this
Put on clothes and go for a walk
Try to think things through
Come back
Leave a note
Think: it's not me, it's you
But you lie in the note
Saying you are feeling off
Saying anything but the truth
But here already you know it's over
Then maybe you drag it out
It was so great at the start
And when the end finally comes
It's tinged with relief
You're used to a broken heart