Against that time, if ever that time come,
When I shall see thee frown on my defects,
When as thy love hath cast his utmost sum,
Called to that audit by advised respects;
...
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Also Sonnet 49 is one of the Fair Youth sequence, in which the poet expresses his love towards a young man. [Wiki]
Nice poem, I liked the words. Was this done in game of thrones language?