Sebastian Morgenstern: Jace is trying to sabotage me. He's trying to... make Clary hate me. But I swear to you, I will end him before I let that happen.

Valentine Morgenstern: Listen. Once we have the mirror, none of this will matter.

Sebastian Morgenstern: I can't have Clary hate me. Not after everything I've been through.

Valentine Morgenstern: Clary doesn't care about you.

Sebastian Morgenstern: Yes, she does.

Valentine Morgenstern: No, Jonathan. She only cares about an English Shadowhunter named Sebastian Verlac. When she realizes the truth about you she will only despise you.

Sebastian Morgenstern: No. You are the one that she despises. I am her brother! She loves me.