So, now I have confessed that he is thine,
And I my self am mortgaged to thy will,
Myself I'll forfeit, so that other mine
Thou wilt restore to be my comfort still.
But thou wilt not, nor he will not be free,
For thou art covetous, and he is kind,
He learned but surety-like to write for me
Under that bond that him as fist doth bind.
The statute of thy beauty thou wilt take,
Thou usurer, that putt'st forth all to use,
And sue a friend, came debtor for my sake;
So him I lose through my unkind abuse.
Him have I lost, thou hast both him and me;
He pays the whole, and yet am I not free.

William Shakespeare

http://www.poemhunter.com/poem/sonnet-134-so-now-i-have-confessed-that-he-is-th/