Mario was introduced to newbie Chloe on a recent episode of the show and made no secret of the fact he thought she was pretty, although as he had a girlfriend he wouldn't do anything.
Now, his status with girlfriend Emma McVey is all up in the air after she tweeted cryptic messages including: "Be happy with your Essex girl, I'm far too good for that."
Neither she or Mario has specifically said they are over.
According to tonight's preview, Chloe and Mario "enjoy flirtation at the gym".. shortly after Chloe's ex Jake Hall visits her and tries to repair their relationship.
Chloe and Jake were together for six years before splitting and both started this series of TOWIE as singletons. Plenty of castmembers, however, have suggested the spark is still there…
Model Chloe was left in tears last week after confronting Jake about a rumoured kiss with co-star Lauren Pope: a kiss Lauren said happened but Jake denied.
Tonight, we'll see Jake visiting Chloe to come clean about everything that has happened and he'll try to "repair their shattered relationship", leaving Chloe to mull about what she will do next…
TOWIE airs Wednesdays and Sundays at 10pm on ITVBE.
Who has hooked up with who in TOWIE?