The pair appeared at the launch of the exclusive Atlantis resort in Dubai, which featured the world's largest fireworks display. Ronson was the DJ for the afterparty and reportedly upset girlfriend Lohan by taking too long to end her set.
"How many more songs were you going to play? How long does it take to pack? It takes five minutes. Pack!" Lohan shouted, according to The Mirror.
The pair were said to have made up when designer Matthew Williamson offered them the chance to open a store in New York.
Lohan and Ronson reportedly rowed recently over Lohan's old flame Calum Best, while another spat allegedly occurred in a London nightclub last week.