Lover's Vengeance

You inspire yourself or a lover to a vengeful rage against a chosen enemy, who must be a creature that has wronged you in some way.

If cast on you, the next time you are in combat with that enemy, you gain the benefits of a rage spell. If cast on a lover, he or she gains the benefits of a rage spell the next time the lover is in combat against your enemy. This variant of the spell must be cast within 1 hour of an intimate encounter with the target. The rage effect lasts 1 round per level. If the creature that triggers the rage effect is one of your lovers or ex-lovers, the benefits granted by the rage spell double. This spell counts as a contingency spell on the target for the purpose of multiple contingent effects.