The song is a popular standard, recorded by numerous artists. In the lyric, Berlin uses an interesting poetic technique by extending the sound of the word "forgot" into "forget me not" then placing the original word (forgot) and the base form of its opposite (remember) at the end of the next two lines:
Remember we found a lonely spot, And after I learned to care a lot, You promised that you'd forget me not, But you forgot To remember.
Remember the night The night you said, "I love you" Remember? Remember you vowed By all the stars above you Remember?
Remember we found a lonely spot And after I learned to care a lot
You promised that you'd forget me not But you forgot To remember