Of all the excellent points being made in contradiction to Binary_Sunset's well thought-out but (IMO) flawed critique, Charlemagne's ring the truest. There are many reasons for Padme to empathize with Anakin's destruction of the Tuskens, not the least of which is that he helped save her homeworld from invasion, and her people from death. Yet at the same time that Anakin is a god-like hero, he is also, after all, only human. One trait I have noticed among young women is their desire to change their partner, to "fix" their mates' perceived flaws. Padme, I think, knows that what Anakin has done is wrong, but she's able to forgive him for it, and move on.