The childhood sweethearts had been apart for quite some time before being reunited in Marbs, and on seeing each other again, Lydia and Arg just couldn't resist locking lips.
New pictures of the couple show Lydia and Arg enjoying a moment together while partying at Cavalli Club with their co-stars. Only, they didn't seem to have any interest in their Essex pals...
Only interested in each other, a loved-up Lydia and Arg were snapped kissing while enjoying one last night together, before the Essex boy had to head home again.
While Lydia spent a week topping up her tan in the Marbella sunshine, Arg had only ventured to the Spanish party resort for just a day - thanks to other filming commitments he had to carry out.
Still, 24 hours with her beau was enough to put a smile on Lydia's face and the 25-year-old couldn't have looked happier to be reunited with Arg overseas.
We've no doubt she filled him in on all the holiday gossip he had missed, too. Not only have Jessica Wright and Peter Wicks rekindled their romance, Ferne McCann and Chloe Lewis had a major bust-up for reasons we are dying to find out.
Lydia's cousin, Liam Blackwell, has also joined the TOWIE cast. He will make his debut when the new series returns to our screens on Sunday (4 October) and joined Lydia and Arg on their night out last Friday.
Following Arg's fleeting stay in Marbs, Lydia too has now returned home to Essex.
She landed back in the UK over the weekend and pleased to be back with her boyfriend and her pet pup, Lydia gushed on Twitter: "Marbella was amazing. But there really is no place like home. Cuddled on the sofa watching Netflix with @RealJamesArgent & Paddy."
And avoiding any holiday blues, Lydia managed to busy herself this week by attending a handful of red carpet events.
She and Arg were first spotted at the premiere of Anne Hathaway's new movie, The Intern, before attending the Pride Of Britain Awards together on Tuesday evening (29 September).
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