Sienna Miller put on a brave face and went shopping in Maida Vale, London yesterday, where she was seen alternating between talking on her phone and avoiding eye contact. She stopped by Raoul's Deli shop to pick up fruit and veg and then headed on her way, but who can blame her for not being bubbly? If the rumors are true, then Sienna is back with Balthazar Getty--and she's reigniting the gossipy whispers that had troubled their relationship. It must be worth it. . . right?