The writers of this series really deserve a lot of credit. I had zero expectations for this show and even less after seeing the 'movie.' It got off to a rocky start, but this year the show has become an exactly what Star Wars was to me as a kid - high adventure, good characters and fun - no more, no less. The Madalore story and the Duchess/Obi Wan story in particular really add color to a character who has had no real investigation in 33 years. They are a stunning contrast to the immature, passionate romance between Anakin and Padme and a good counterpoint to it (how perfect was Anakin killing that guy at the end - that's real writing).
The one quibble I have is that Obi Wan should not have said he'd leave the order. I don't believe he would; I think he's a soldier, a devoted Jedi, and despite his feelings would choose service over personal desire. That would make him more of a contrast with Anakin, and his situation equally as tragic. By him saying he'd leave - what if she asks him now? Would he? Will she in next week's show?