Lucy has admitted she is still in love with her ex after seeing him with co-star Lauren Pope, who previously admitted to kissing Mario.
Viewers of Wednesday night's 'The Only Way Is Vegas' saw her break down in tears as she opened up about her feelings to pal Sam Faiers.
She also confessed that had no self-esteem after finding out about Mario and Lauren, despite recently hooking up with Tom Pearce.
Lucy told Ferne McCann that she became close to Tom during a trip to Ibiza earlier in the summer, but things had become complicated between them after their relationship became public knowledge.
But will Lucy's feelings for Mario stop her finding happiness with Tom? Let's hope not.