At Luke's angry, hurt words, Padmé gasped. She wanted to defend Anakin, wanted so desperately to make her son understand that it wasn't his fault. It wasn't either of their faults. She didn't, though. She had made the decision that Anakin was to tell Luke he was his father, and that included explaining why he hadn't been there to be his father. So she remained silent and waited.
Fortunately, she wasn't disappointed.
As soon as he'd finished speaking, she joined in. "He's telling the truth, Luke," she said quietly, peering down at their son with damp eyes. "He didn't know. I'm certain if he had, he would have come to get you immediately."
There was more she wanted to say, so much more, but again she refrained. She couldn't speak for her husband in this regard. So with a light ruffle of Luke's hair and a soft, fleeting kiss upon the top of his head, she straightened and said, "I'm going to prepare your bath and find you something to wear." Looking to Anakin, she gave him an encouraging, loving smile then calmly left the room to do precisely as she'd said.