The 29-year-old joined friends Chloe Sims and Danielle Armstrong in scenes for the Essexmas special of the ITVBe reality show and, unsurprisingly, her incredible transformation was the topic of conversation.
Lauren explained: “I’ve taken myself out, focused, and just grown up really. I think [fitness has] helped me mentally, physically.”
Mark, 28, and Lauren both appeared in the very first series of TOWIE, and their turbulent 10 year relationship was the centre of many dramatic story lines – perhaps most their most memorable moment was when she pushed him into a pool in front of a crowd of partygoers…
But it seems that, along with a new body, Lauren has new frame of mind. She continued: “Second love is always different.
“You’re happy and confident and don’t put up with what you’ve been through before.”
Speaking exclusively to Closer Online this week, 27-year-old Danni admitted she’d love for Lauren to make a permanent comeback.
Danni said: “Going forward to February, when the next series starts, I think it would be great if she came back. I’m sure if she did, she’d stir a little drama.”
Did you catch Lauren on last night’s show, and would you like to see her back for good? Let us know on Facebook and Twitter.