How Long Has This Been Going On? Lyrics

HOW LONG HAS THIS BEEN GOING ON
Gershwin / Gershwin

......
......
Though these lips have made slips,
It was never serious.
I could cry salty tears
Where have I been all these years?
Listen you, now tell me too
How long has this been goin' on?
There were chills up my spine
And some thrills I can't define
Listen sweet, I repeat
How long has this been goin' on?

.......
Into heaven I'm hurled
I know how Columbus felt
Finding another world

Kiss me once, then once more
What a dunce I was before
What a break, for heaven's sake
How long has this been goin' on?