Which piece from Madame Butterfly is this?

Suzuki is singing, and Butterfly is walking around the stage with flowers in her hands. I can’t remember the words, but she sings
D E Bb, D E Bb, D E F E D E D Bb, A Bb A F A A F E, and the rhythm is 4 4 2, 4 4 2, 4 4 4 4 4 8 8 2, 4 4 4 4 4 8 8 2 (4 is a quarter note, 2 is a half note, 8 is an eighth note). I’m just trying to figure out which of the pieces this is…