If Alexander had said yet, it would've made Vincent feel worse, feel like he's doomed to mess up essentially. So it's good he kept that back. He nods a bit at Alexander's words. "Will do." He understands how bad it could be for Alexander if he's found out....let alone how bad it would be for himself. He perks up at Alexander's words and all before hugging him tightly. "Thank you." It's a distraction from his nightmares and thoughts for the moment: it makes him happy.