Robert Herrick - TO OENONE.

What conscience, say, is it in thee,
When I a heart had one, [won]
To take away that heart from me,
And to retain thy own?

For shame or pity, now incline
To play a loving part;
Either to send me kindly thine,
Or give me back my heart.

Covet not both; but if thou dost
Resolve to part with neither;
Why! yet to shew that thou art just,
Take me and mine together.

Robert Herrick

http://www.poemhunter.com/poem/to-oenone-2/