Farewell Ungrateful Traitor - John Dryden

Farewell, ungrateful traitor! 
Farewell, my perjur'd swain! 
Let never injur'd woman 
Believe a man again. 
The pleasure of possessing 
Surpasses all expressing, 
But 'tis too short a blessing, 
And love too long a pain. 

'Tis easy to deceive us 
In pity of your pain, 
But when we love, you leave us 
To rail at you in vain. 
Before we have descried it, 
There is no joy beside it, 
But she that once has tried it 
Will never love again. 

The passion you pretended 
Was only to obtain, 
But once the charm is ended, 
The charmer you disdain. 
Your love by ours we measure 
Till we have lost our treasure, 
But dying is a pleasure 
When living is a pain.