>>114929191It's interesting how he didn't feel her either. Admittedly they had both clearly changed within the Force. Anakin becoming something far darker and unrecognizable but Ahsoka herself was transformed given how when she tunes an Inquisitor's kybers to herself they wind up white. I don't know what the actually difference is between such a color change, but it's definitely symbolic of her being different. She's not the same person, and not quite a Jedi anymore.
But as we've seen in close proximity they have a very strong connection, something engendered by a close relationship of two being strong in the Force. We see this in the sisters arc where Anakin orders his ship to let Ahsoka's go because he can sense her presence.
This raises an interesting implication. There's still enough Anakin under that armor for her to sense, which is something we know from ROTJ even though Ahsoka herself isn't enough to restore him to his senses. I wonder if perhaps it might have been enough. By this I wonder if perhaps Ahsoka, who was far less changed herself, was maaaaybe protected by the good within Vader. Is it too much if even that small part of Vader can influence him enough to hide someone he cares about? I don't know. It doesn't feel that bad to me, especially since the new material shows how Anakin's lingering sentiment over Padme has influenced Vader repeatedly throughout his career. Hell, even Aphra was able to get the better of Vader, temporarily, using an old Jedi device meant to inflict a person's guilt upon them.
That or Vader may have dismissed it because he didn't want to believe, or subconsciously didn't want that kind of meeting. A rematch with Obi-Wan is, by comparison, far less painful. He still has reason to hate his old Master for Mustafar, but Ahsoka is just a link to a future he feels was stolen from him along with Padme's death.