From the 60's !
My wife and I had a go at this question, since she's more in touch with the softer side, we came up with these:
From the 60's - 'Unchained Melody' by the Righteous Brothers
The 70's - 'Mandy' by Barry Manilow
The 80's - 'Faithfully' by Journey
60s- My Girl by The Temptations (This is my husband's and my song.)
70s- Baby I Love Your Way by Peter Frampton
80s- More Than Words by Extreme
Dear Can't Wait,
Well the love song I think just really stands out from those decades is THE ROSE, which Kidddas WG has already given you...
So as one of the marvelous runner-ups, I have picked for you SEVEN SPANISH ANGELS; and it's not the best known version of Willie Nelson and Ray Charles, but the identical twins Bucky and Rocky Covington, in a USO performance...see what you think!
60's-Tracks of My Tears by Smokey Robinson and the Miracles
70's-Wild Horses by the Rolling Stones
80's-Just Between You and Me by April Wine
I don't believe in love songs anymore.
60s - Johnny Angel. I was in love with Shelly F.
70s -Love Will Keep Us Togeter - Captain and Tenille
The 80's . The Jets All over Him.