Terezi blinks. And then she smiles--not mocking or derisive, but maybe a little amused at his expense. "It's okay. You wouldn't be the first person to think that. Or the last, probably."

Actually, the most recent person to think that was Karkat, but she decides not to point that out. Instead, she continues with a little less amusement: "You are a lot like Sollux for the record! But I'm not using you as a replacement. You're your own person, and you deserve to be treated like an individual. Not like some collective Captor hivemind."