And is Lockie the culprit?
On Sunday night's Halloween special, Megan, 24, ends up having to attend the cast party alone as Pete is unwell and in bed.
While at the party, she bumps into Pete's best friend James 'Lockie' Lock and has a chat with him about where she's at when it comes to taking Pete back.
But it all ends in drama later in the night when another chat with Lockie's ex-girlfriend, Danielle Armstrong, reveals some unsettling information for Megan, who leaves the party in tears.
We don't know yet what is said, all we know is that Danielle tells Megan what Lockie has told her about Pete and Megan's relationship.
What on earth could it be?!
Fans will know Pete's been trying desperately hard to win Megan back after he was caught sexting multiple women behind her back.
Megan's admitted she was heartbroken, hurt and embarrassed by the whole incident, but Pete has been working hard to win her trust back.
He appeared to make headway in the last episode when he took Megan out of Essex to a spa hotel (with separate bedrooms) in a bid to get away from the gossip and rumours.
After a candlelit dinner on a private patio and a declaration of love, Pete, 27, made Megan smile by playing their song, 'Endless Love', and telling her he remembered they'd always wanted it played if they got married. It led Megan to propose a toast to 'first dates' suggesting she was starting to thaw towards Pete.
He brought her breakfast in bed the next morning, and Megan told him: "That was really thoughtful of you to play our song. That probably meant more than this whole weekend away, that one little moment."
Pete told her: "It was a bit cheesy but I wanted to show you I do notice the little things. "I know it's too early for a first kiss and all that sort of stuff but I'm looking forward to that. Are you going to make this really hard for me?"
"Maybe," Megan had replied with a smile.
But is that progress all about to be undone? We'll find out when TOWIE continues Sunday at 10pm on ITVBe.
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