PHOTOS: SPLASH NEWS, PA IMAGES, SHUTTERSTOCK IT WAS ONLY two months ago that Sienna Miller was revealed to be dating the wealthy New York gallerist Lucas Zwirner (the pair were pictured kissing while out walking her dog). It seems, however, that things are already getting serious.
Last week, the couple made their official public debut as they arrived together for Paris Fashion Week, where Sienna, 37, later sat front row at the Louis Vuitton show. According to friends, it’s the latest sign that the relationship is the ‘most serious Sienna has been in’ since her engagement to Tom Sturridge (the pair have a daughter together, Marlowe, but split in summer 2015).
‘Sienna had a number of casual relationships and dates before meeting Lucas, but things are totally different with him,’…
