Analysis of To An Inconstant Mistress

I loved thee once, I'll love no more,
   Thine be the grief as is the blame,
Thou art not what thou wast before,
   What reason I should be the same?
He that can love unloved again
Hath better store of love than brain;
God send me love my debts to pay,
While unthrifts fool their love away.

Nothing could have my love o'erthrown,
   If thou hadst still continued mine;
Nay, if thou hadst remained thine own,
   I might perchance have yet been thine.
But thou thy freedom did recall,
That it thou might elsewhere enthrall,
And then how could I but disdain
A captive's captive to remain?

When new desires had conquered thee,
   And changed the object of thy will,
It had been lethargy in me,
   Not constancy, to love thee still;
Yea, it had been a sin to go
And prostitute affection so,
Since we are taught no prayers to say
To such as must to others pray.

Yet do thou glory in thy choice,
   Thy choice of his good fortune boast;
I'll neither grieve, nor yet rejoice
   To see him gain what I have lost.
The height of my disdain shall be
To laugh at him, to blush for thee;
To love thee still, but go no more
A-begging at a beggar's door.