Top models — and rumored dating couple — Freja Beha Erichsen and Arizona Muse shot what appears to be part of Chloé's spring 2012 ad campaign this past weekend.  The pair were photographed around the Chateau Marmont hotel in Los Angeles, posing and strolling along a sidewalk in striped dresses from the label's spring runway collection. (And Arizona's new hair was styled into a softer bob.) So here's the inevitable question, just to get things started: Is all the smizing and camaraderie just a good case of "acting" for the camera, or a sign of something more lovey-dovey?