"They will fight most valiantly when defending someone they love. Due to their gallantry, Gallade will never slay foes in combat under normal circumstances. Should their honor be sullied, however, they may challenge offenders to duels to the death, going to lengths to ensure that participants will be on even footing during such matches." - Pokémon Wiki on Gallade
Controversial opinion but I prefer Gallade than Gardevoir tbh.