As it is the first of April :)

Mystery
All my life has been a mystery
You and I were never ever meant to be
That's why I call my love for you a mystery

Different country
You and I have always lived in a different country
And I know that airline tickets don't grow on a tree
So what kept us apart is plain for me to see
That much at least is not really a mystery

Estuary
I live in a house boat on an estuary
Which is handy for my work with the Thames Water Authority
But I know you would have found it insanitary
Insanitary

Taken a violent dislike to me
I'd be foolish to ignore the possibility
That if we'd ever actually met you might have hated me
Still, that's not the only problem that I can see

Dead since 1973
You've been dead now 
Wait a minute, let me see...
Fifteen years come next January
As a human being, you're history

So why do I still long for you?
Why is my love so strong for you?
Why did I write this song for you?
Well, I guess it's just a mystery.