Speaking in a new TOWIE video, Gatsby explained that Arg still has feelings for Lydia and misses her, although insists he is trying to focus on himself following his recent bootcamp stint.
News of Arg's break-up with Lydia came earlier this month, when he revealed he had spent more than a month at the bootcamp in Norfolk.
Following his confirmation of their split, Lydia spoke out and said although tough, she "had no choice" but to end their relationship. This came amid reports that 'his partying had got out of hand' again.
Gatsby spent time with Arg at bootcamp and explained in the new video, posted on the official TOWIE Facebook page, that his pal is "happy", despite still being in love with Lydia.
"Arg is still single, but he obviously still loves Lydia," he said. "He's good, he's happy and training and trying to get in shape for himself.
"It is what it is, a break-up is a break-up. You've just got to get on with it, what else can you do?
"Obviously he loves Lydia and misses Lydia, but right now he's just concentrating on himself and getting into shape and being healthy."
Before their break-up, Lydia and Arg had been house hunting for a family home.
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