Happiness,
A fleeting moment,
Of pure delight,
When lovers meet,
A flaming light,
A moment swift,
That thrills the heart,
Lasts a few seconds,
Then, we must part.

Forbidden Fruit,
Happiness Is,
The smallest taste,
Then all amiss,
True love is short,
May not exist,
And still we dream,
Of hidden bliss.

Sandra Feldman

http://www.poemhunter.com/poem/forbidden-fruit-56/