I should have known

I should have known I'd be alone again,
On my own again ; I should have known.
Now I see things even the blind should see ;
Things someone with half a mind should see.
The signs were there but I was too in love ;
Much too new in love, to be aware.
We flew too high at the start :
Too high not to descend,
It's no good to pretend
I should have known, my friend,
You'd break my heart.

[REPEAT]