Alec Lightwood: Remember that bridge you brought me to in Paris last week? The one where people put those locks?
Magnus Bane: To show their eternal love.
Alec Lightwood: Right. Well, they have a place like that here in New York too. Look, I don’t know. I know it’s silly. I wanted us to have a lock too. (Magnus blows at the lock and makes words appear…) What does that say?
Magnus Bane: “Aku cinta kamu.” Indonesian for “I love you.”
From Shadowhunters – Season 3 Episode 19: ‘Aku Cinta Kamu’ (3×19)