The Essex favourite uploaded a snap to Instagram today showing the co-stars looking younger while hanging out together before finding fame.
Her caption read: "Six years ago. Not much has changed."
Lydia's picture came after another rather dramatic episode of TOWIE in which she admitted to best pal Lewis that she still had feelings for ex-boyfriend Arg.
We've seen Lydia and Arg growing closer in recent weeks – but she seemed adamant they would just stay friends, taking offence when he suggested she flirted with him.
Partly that's because she was dating someone else, a guy called Ben, off camera.
But on last night's episode, we learned that Lydia and Ben had parted ways because there was no spark there, leaving Arg very excited at the possibility of a reconciliation with Lyds.
"Me and Lydia have always been flirty, but with or without being together, we're just having fun, it's nice," he revealed. "The fact that she's single makes it a bit easier if anything potentially was going to happen down the line, as friends or more, so who knows?"
TOWIE's series finale airs Sunday at 10pm on ITVBe.
Missed the last series of TOWIE? Recap here: