We’re into Unstoppable Force vs. Unmovable Object territory, with seemingly no good outcome that can emerge from Vanitas and Noé fighting. If Vanitas gets through Noé and harms Misha, Domi will jump to her death. But Vanitas doesn’t care. Neither Noé nor Misha have the whole story, and Vanitas is resolved to keep it that way—Noé and Domi’s lives are expendable to him.
This enrages Noé, but it doesn’t take long to figure out that Vanitas is intentionally provoking him to throw him off and force him to use too much of his strength. After all, he can’t get Vanitas’ memories from his blood if Vanitas is dead. The last thing Noé wants is to kill Vanitas, but he can’t lose Domi, either. It’s just a shitty situation all around…Thanks OMisha!
Vanitas’ little brother also tells Noé that Vanitas has hypnotized himself for one purpose: killing anyone who tries to suck his blood. Whatever genuine feelings of friendship or love for anyone or anything have been temporarily taken out of the equation, which combined with his considerable Chasseur skills (not to mention the freaking Book of Vanitas) make him extremely dangerous.
Unfortunately, it also saps his agency. This isn’t the Vanitas we know doing and saying these things: he’s basically in Fail-Safe Mode; his will and ego replaced by a rigid set of directives. He did to himself what Misha did to Domi, but Inner Domi throws a little wrench in Misha’s machinations by jumping without him telling her to, in hopes taking herself out of the equation will keep Noé from getting hurt.
Physical harm aside, nothing would hurt Noé more than losing her, but fortunately she’s unable to follow through on her suicide attempt, as Jeanne arrives and snatches her out of the air. She isn’t quite sure what’s going on, but her orders from Luca are to keep Domi safe, and she’s going to do that. Even if Misha is able to nullify her main weapon and Domi is still under his spell, Jeanne’s intervention allows Noé to focus on Vanitas.
Vanitas may go on about how Noé knows nothing about him, and that might’ve been true when they first met, but Noé is confident he’s been with Vanitas long enough to know what kind of person he is. For instance, he knows Vanitas considers solitude to be freedom, which is why he vows never to set Vanitas free.
That seems to break the hypnotic hold Vanitas placed on himself, but the episode ends abruptly without revealing the result of their fall. I understand having to save something for the finale, but it felt less like a cliffhanger and more like the episode just…stopped. That said, the second half should be something.