Holly and I heard part of this in a store somewhere on our trip to Colorado. She wasn't familiar with it, and I was singing along.
On one of the discussions about unschoolers getting along with their spouses, someone asked about movies with happy couples in them. Probably there are some, but movies tend to be about problems more than about peaceful situations. Songs, though... there are LOTS of songs about love. I have a collection, but this one doesn't seem to fit it. Still it's a great song.
My other collection is songs that describe the physical sensation of being in love:
http://biochemicallove.blogspot.com/ LOVE: Romantic Biochemistry