The TOWIE girl posted the snap to her Instagram account last night with the caption, "Oops!!!! #whathappensinvegas".
Now, with April Fools just around the corner, and a friend who would obviously have an engagement ring to hand, we're sceptical that she's had her own Ross and Rachel moment.
However, we can't help but wonder if this has anything to do with Mario Falcone.
We know the pair have been back in contact, as Lauren Pope reminded everyone in last night's episode.
So are these just more games from Lucy, to make Mario jealous and keep him interested.
Remember how he admitted telling her he wanted to marry her only a few episodes ago?
Seems like this may be a bit of a cruel joke...maybe she found out about Chloe Sims and isn't happy.
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