Balthazar Getty and Sienna MillerFirst it was reports of Jude Law and Sadie Frost being back together...

Now Sienna Miller may be getting cosy a second time around too.

With none other than her ex-love, Balthazar Getty.

The pair have been snapped leaving swanky London nightclub Groucho - albeit separately.

According to the Daily Mail, Si and Balt partied the night away together at the club.

It's all a tad confusing seeing as how Si admitted a few weeks ago that she was single.

An onlooker also told The Sun they'd seen the couple walking pooches in Maida Vale together.

The source said: "They looked so much in love. Sienna was clutching Balthazar's hand and giggling as they strolled along together."

In July, the couple first hit headlines when they were photographed together in Italy, but Balt later released a statement saying: "In light of the fact that many pictures have surfaced in print and on the internet which has caused myself and my family great embarrassment, I felt it necessary to at least acknowledge publicly that yes indeed my wife and I have separated and I will not be commenting any further."

Even though neither Si nor Balt have confirmed a reunion of the hearts, we do hope it's true.

Just think - they could join Sadie and Jude for Christmas dinner...