I think the Arthurian triangle works so well because Guinevere's loyalty to Arthur feels dutiful and from a place of respect and admiration for wisdom/decency. Her relationship with Lancelot is one of passion. It's worth considering that dichotomy here, with Anakin the Chosen One destined to be a savior. Obi-Wan, by contrast, is represse…
I think the Arthurian triangle works so well because Guinevere's loyalty to Arthur feels dutiful and from a place of respect and admiration for wisdom/decency. Her relationship with Lancelot is one of passion. It's worth considering that dichotomy here, with Anakin the Chosen One destined to be a savior. Obi-Wan, by contrast, is repressed and unable to express his emotions. In this scenario, both become liars. The real problem arises when we consider Padmé's role, as she becomes a woman who inevitably came between two men and destroyed a Republic. It doesn't matter how much agency you shift to Anakin and Obi-Wan, the woman is always perceived to be at fault. To have Luke and Leia's mother be guilty of such a feat is...probably the biggest reason Lucas didn't go this route.
I think the Arthurian triangle works so well because Guinevere's loyalty to Arthur feels dutiful and from a place of respect and admiration for wisdom/decency. Her relationship with Lancelot is one of passion. It's worth considering that dichotomy here, with Anakin the Chosen One destined to be a savior. Obi-Wan, by contrast, is repressed and unable to express his emotions. In this scenario, both become liars. The real problem arises when we consider Padmé's role, as she becomes a woman who inevitably came between two men and destroyed a Republic. It doesn't matter how much agency you shift to Anakin and Obi-Wan, the woman is always perceived to be at fault. To have Luke and Leia's mother be guilty of such a feat is...probably the biggest reason Lucas didn't go this route.
Thinking about it, I realized most of what I know about the King Arthur legend comes from Monty Python...
However, I think you are probably right. Padme would have taken the fall, even if when she didn't deserve it.