The Ex On The Beach star has had doomed relationships with Geordie Shore's Gaz Beadle and Celebrity Big Brother winner Stephen Bear in the past, both heavily publicised, so perhaps it's no surprise she wants to keep her current beau all to herself.
Phoning into MTV Australia's Facebook Live, Lillie said: "I am seeing somebody… nobody knows [who he is] and I want to keep him a secret!"
Addressing why she then posted teasing images of her mystery man to Snapchat - but not his face - Lillie simply said: "Yeah, but you can't work out who he is!"
"He's not from Essex," she added. "It's early days and I'm a bit scared to put my relationship out there. So we are just taking it very slowly. But he definitely treats me a lot nicer than anyone else has! He's totally different; just really polite, calm and quiet."
Lillie's certainly had a tough time when it comes to past relationships.
On the fifth series of Ex On The Beach, airing Tuesday nights at 10pm on MTV, Lillie found out Gaz had cheated on her with fellow islanders Melissa Reeves and Chysten.
It was also on EOTB that Lillie first met future boyfriend Bear: they hit it off during an early date but when he turned his attentions to Chrysten, they parted ways.. only to get back together after the show.
Of course, Lillie had no idea what Bear had got up to on EOTB until she watched the show with the rest of us, and she admitted to MTV: "I've literally have just had the shock of my life watching it back and seeing it all back. Let's just say I'm glad we are no longer together."
Bear dumped Lillie in August while he was appearing in CBB, leading her to enter the house as part of a task to tell him how embarrassed and heartbroken she had been by his behaviour.