Which preposition to use with unrequited

for Occurrences 1%

" "Who has gone unrequited for his eminent services!" answered the Genoese, thoughtfully "The extraordinary refusal of that man to receive our money is quite as wonderful as any other part of his unusual and inexplicable conduct.

in Occurrences 1%

And Heaven will bless thee, for few wrongs go unrequited in this life, and little good without its reward.

Which preposition to use with  unrequited