"Perhaps she managed to avoid what happened to the Jedi." Given that she had left the Order, there was a possibility, right? Padmé would hope so, although it would likely be no less hard for her. She may have left the Order, but that didn't mean that all ties had been cut off. Anakin and Obi-Wan, and the Clones, had been there to aide her after the fact with a mission. She knows that any of them would have helped Ahsoka in anyway that they could.