Ares - suave, charming, witty, yet ruthless and amoral - often represents, especially in the early seasons, the seductive power of war and the dark side. He repeatedly attempts to lure Xena away from her quest for redemption, and tries to win her over as his Warrior Queen. He offers her huge armies and historic victories, great wealth and great power, and in later seasons his love, offers which she consistently rejects despite sometimes being tempted.

Much of his relationship with Xena remains ambiguous, including whether he is at least partly redeemed by his love for Xena, and to what extent Xena reciprocates his feelings. He says several times that he "has a thing" for Xena, and he pursues her sexually and romantically. This seems to prevent him killing her, even when pitted against her in deadly combat. Likewise, it is suggested that Xena has strong feelings for Ares, but during the series she is never seen to act on them.

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