ok two options you are either thinking of
Ares the god of war who had an affair with aphrodite. his powers werde the ability to make a man wangt to kill someone
link or Eros the god of beauty in the greek version in the roman version he was known as Cupid. he was possibly the son of Ares and aphrodite the goddess of love. in the greek version he was only her helper but in the roman version his powers are that he uses arrows of amor on unsuspecting people to make them fall in amor with whoevefr he wants them too!!!
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