We caught up with them for a special Reveal photo shoot and the pair admitted they're happier than ever. Here they are behind the scenes of our shoot in Essex:
Arg, 27, says living with Lydia is going better than he expected.
"I love the fact that we can go to bed with each other and have a cuddle, a chat and a kiss," he says.
"We wake up in the morning and she's lying there next to me. We can spend quality time together, even if it's chilling out on the sofa watching movies."
And Lydia, 25, is just as delighted to be sharing her home with Arg.
"We're really passionate, we get on so well. I've never had this with anyone else - I love him so much it aches my heart," she says.
"James is the only person who gives me that feeling. I wouldn't want to be with anyone else now."
The pair have just started filming ITVBe's new series of TOWIE in Marbella - but Lydia isn't worried about the pressure the show will put on their relationship.
"The TOWIE curse is nerve-wracking, but I think we can beat it!" she says. "I don't think anything really bad will happen.
Arg adds: "A lot of people have broken up on the show because it is a lot of pressure. We've done the revolving door too many times - this time our relationship is for keeps."
To read the full interview with Lydia and Arg, to see the shoot and for all the details of them moving in together, plus why Lydia thinks it's time Arg proposed, pick up a copy of the magazine, out now.
To keep up-to-date with all the TOWIE goss in Essex and Marbella, click here.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!
10 reasons why we want to be in TOWIE: