What Is The Most Romantic Song That You Have Ever Listen To?

First time ever I saw your face. Roberta Flack
Killing Me Softly. Roberta Flack

“When Your Young and In Love”
by the Flying Pickets

I have a fairly good idea what type of music this crowd here is auditioning  on their $25K+ setups.
All these tunes are great but will sound better on a vintage mediocre Hi Fi

Some really romantic songs here! 

My pick is 'some enchanted evening'.  By anyone.  Just heard it for the first time a couple of years ago whilst watching South Pacific.  Can't get it out of my head.