Tristan didn't have to think anything through, it was so obvious that he was fooled. The sudden appearance of Andrew, and the weird behavior of Liliana last night. It says it all and suddenly he felt his world crash.
The moment he heard his enemies had taken his Liliana right under his nose, he felt destroyed and dead. Liliana, why didn't she call out to him? He lifted his gaze for it to land on Vivian who was sneaking out. She knew that the moment Tristan think it through and regain himself, she was dead but she wasn't about to proceed. "Vivian," she heard her name and instead of trailing off, she stood still in shock.
"I'm sorry Tristan, please..." She wasn't able to complete her statement because he fell on her by slapping her face with his backhand. She lost her stance only to get lifted by her hair. There, she was bleeding.
