The way Alec just slams straight into Magnus once he sees him. Magnus’ little rambling about Madzie being safe with Catarina because he thinks that’s what Alec’s worried about. Alec being like ‘Magnus, no, wait, I only care about you right now’. Magnus’ shock at Alec’s confession. Them being afraid to lose one another. The “I love you”s. The “I can’t believe you’re safe and I wanna keep you safe for the rest of eternity” kiss. The forehead touch and soft breaths. The unsaid “you’re here with me now and that’s all that matters” as they hug.