Lyrics:

Let our affair be a gay thing
And when these hours have flown
Then, without forgetting happiness that has past
There'll be no regretting fun that didn't quite last
Let's look on love as a play thing
All these sweet moments we've known
Mustn't be degraded
When the thrill of them has faded
Let's say goodbye and leave it alone

Now we've embarked on this foolish game
Don't let's destroy it with tears
Once we begin to let sentiment in
Happiness disappears
Reason may sleep for a moment in Spring
But please let us keep it a casual thing
Something that's sweet to remember through the years

[spoken:] Listen, my dear, were both of going to suffer a good deal during these next few months, and the color will go out of everything for a bit, but when we do meet again, somewhere far away in the future, it'll be gay, and sweet and terribly exciting, because however many others we may have loved in the meantime, and however old and tired we may be, we shall have between us a perfect memory

Let our affair be a gay thing
And when these hours have flown
Then, without forgetting happiness that has past
There'll be no regretting fun that didn't quite last
Let's look on love as a play thing
All these sweet moments we've known
Mustn't be degraded
When the thrill of them has faded
Let's say goodbye and leave it alone