A great 'break-up ballad' I'd completely forgotten about. I just heard a version by Buddy Jewel that sold me on it...
http://www.bmgmusic.com/catalog/product/cd_detail.jhtml?productId=50365

I recall it being done by a doo-wop group of the 60's. As it turns out, The Casinos, 1967, but also recorded by Johnny Mathis, Perry Come Eddie Ardold, and several others... great song.