Lindsay Lohan and DJ girlfriend Samantha Ronson looked like they had fallen out during Sam's last gig in London.
There was a frostiness between the couple at Mayfair club Mahiki, where Samantha took to the decks for a 50 minute set.
The pair have kissed and held hands at other gigs, but there was no such affectionate behaviour on the couple's last night in the country.
Lindsay only joined Sam in the DJ booth for a few songs before she stormed out because she was angry about clubbers taking her picture.
Sam then went to the VIP area to join Mean Girls star Lindsay, but the couple spoke to other clubbers rather than each other.
One clubber said: "Lindsay was moody all night, covering her face with her hands whenever anyone tried to take her picture, and Sam looked pretty miserable."
Lindsay and Sam left to go to Boujis, where the lovers tiff apparently continued. They were spotted at Heathrow airport the next morning where they caught the plane back to Dubai.
Mahiki's resident DJ, Tom Crane, who is Girls Aloud's Sarah Harding's fiance, took over the decks after Sam.