I've loved this song and its message since I was 14 years old. It's as sweet and strong as ever.

Then You Can Tell Me Goodbye

Kiss me each morning for a million years
Hold me each evening by your side
Tell me you love me for a million years
Then if it don't work out
If it don't work out
Then you can tell me goodbye

Sweeten my coffee with a morning kiss
Soften my dreams with your sigh
Tell me you love me for a million years
Then if it don't work out
If it don't work out
Then you can tell me goodbye

IF you must go I won't grieve . . .
If you'll wait a lifetime
Before you leave

Then if you must go . . . I won't tell you no
Just so that we can say we tried (we tried)
Tell me you love me for a million years
Then if it don't work out
If it don't work out
Then you can tell me goodbye

Notes: On January 8th, 1967, "Then You Can Tell Me Goodbye" by the Casinos entered Billboard's Hot Top 100 chart; and on March 5th it peaked at #6 {for 1 week} and spent 13 weeks on the Top 100...
It was composed by John D. Loudermilk, who also wrote Paul Revere & the Raiders #1 hit, "Indian Reservation"...
Three covered versions have charted on the Top 100; Eddy Arnold {#84 in 1968}, Glen Campbell {#27 in 1976}, and Toby Beau {#57 in 1979}...
And on October 13th, 1968 Eddy Arnold's version reached #1 {for 2 weeks} on Billboard's Hot Country Singles chart.

Click to listen:
https://www.youtube.com/watch?v=Y1CMDBbylS4