"You are so thoughtless of me You say things that make me so blue You show it in so many little things you do Or is that just your way of telling me we're through You're much too much on my mind I guess that you just shouldn't be And maybe if I thought less of you, baby, You wouldn't be so thoughtless of me"
January 1, 1970
https://en.wikiquote.org/wiki/Thoughtlessness