She almost said that if Xemnas were here she'd be the first to attack. She didn't, but Taiki would feel a massive spike of anger and fear at his name. Confusion at Marluxia's name, but then, Xion hardly remembered him... if she remembered him at all outside of what Axel had told her.

"I won't let you or anyone else hurt him," she said, firmly, though she finally acceded to Taiki's request and nodded at him, vanishing the Keyblade. She was willing to go inside, but she was keeping her eyes on Vexen. Just in case.