Palpatine was right, Vader was weakened whenever he faces anything in his past, like Obi Wan or Ahsoka.

Obi wan was one of the few persons that could revive parts of Anakin in Vader. That’s why Palpatine wanted Vader to stop obsessing with his old master in Kenobi series. Palpatine wanted to keep Vader in the dark Side.When Vader was facing Reva, it was effortless. He was calm. He has no attachment to her at all. But with Obi Wan, Ahsoka, Luke? He can't keep Anakin away. Love that Luke is able to sense the conflict within.  via /r/StarWars https://ift.tt/V3By0IO