The Assassin's Curse

Leif was born with the "assassin's curse" he would be obsessed with killing and could never fall in love, but over time he meets Rhys and becomes one of Prince Asch's best guards... but only true love can break this curse, yet it can't happen, At least spoken in the legends, can Leif find true love and break this curse, or is he cursed to kill forever? and will this true love last if it even happens?