Samantha Ronson stormed out on a teary Lindsay Lohan after a very public argument during yet another night of partying in London.

After leaving Boujis nightclub together at 3.45am, the pair were driven back to their hotel where the DJ angrily slammed the door of their Maibach limo before heading inside.

A visibly upset Lindsay sat alone in the car for 10 minutes before running up to her hotel.

Meanwhile, back at Boujis, Linds' ex-lover Calum Best left with some friends and a mystery blonde - but was his presence the reason for the lovers tiff?

A smiley Lindsay earlier in the evening (left) and after her bust-up with Sam (right)

As Entertainmentwise previously reported, this is not the first time Lindsay has met up with her ex during her trip to London.

It seems that the gay girls' relationship has hit a rough patch.

See the girl fight below