Showing how much Anakin and Padmé care for each other is one of my weak points,” Lucas admits. “Expressing that is hard to do. It’s really hard in the end to express the idea, I’m so in love with you that I would do anything to save you; I’d give up everything – friends, my whole life – for you, and make that real – make that stick – and say it in two minutes, which is all the time this film has for it. If I had a whole movie, I could probably manage it. But I can’t go deep into the psyche of these people beyond a certain stylistic reality I’ve created for myself. It wouldn’t work.
From The Making of Star Wars: Revenge of the Sith