Then you'll remember me, Thaddeus's aria from The Bohemian Girl

When other lips and other hearts
Their tales of love shall tell,
In language whose excess imparts
The power they feel so well:
There may, perhaps, in such a scene,
Some recollection be
Of days that have as happy been,
And you'll remember me!

When coldness or deceit shall slight
The beauty now they prize,
And deem it but a faded light
Which beams within your eyes;
When hollow hearts shall wear a mask,
'Twill break your own to see:
In such a moment I but ask
That you'll remember me!