Love Island viewers were hitting out at the show minutes into the latest episode kicking off, as Casa Amor finally arrived.
Viewers finally got to see the new boys and the new girls debut amid the usual twist, that sees the original boys and girls torn apart.
The girls have left the main villa for Casa Amor, the second villa, where they have been joined by six new guys - the ultimate test for their current romances.
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Facing the same test in the main villa are the original boys, who have been joined by five new girls and one familiar face - Molly Marsh.
Molly has already been in the villa this series, and she coupled up with two of the guys who are still on the show.
Just weeks after her being savagely dumped from the show after Kady chose her man Zach, it was rumoured Molly would be heading back in for Casa Amor.
The news was confirmed in a clip on Friday that saw five new Casa girls heading to meet the boys in the main villa.
As the clip came to an end, the camera focused on a sixth girl walking behind them all and it was a familiar face.
Molly was seen strutting towards the villa with a grin on her face, confirming she was back.
On Sunday night she made her big return, leaving the boys stunned to see her - but not everyone watching at home was impressed.
While some viewers backed the return, plenty of other viewers called it out and said it was "unfair" for Molly to come back, when no one else had the opportunity.
Some viewers even threatened to stop watching the show, with many disappointed that Molly has been allowed to go home and see her loved ones, appear on spin-off series Aftersun and speak out interviews, only for her to return after seemingly having access to her phone too.
Taking to Twitter viewers slammed the twist with one writing: "Y’all better not make casa all about Molly . Bringing her back was already unfair."
Another fan said: " I can’t believe I’m gonna say this but sending Molly back in is unfair to Zach. He’s playing the game the way he’s supposed to. He can’t even enjoy Casa Amor cause his 'ex' is there."
A third viewer said: "I really don’t care that Molly is back there. It’s so unfair to all the other islanders that have left previously."
Another fan agreed: "Molly will get all the airtime and the casa girls will get none. Casa will be about Molly. So unfair."
The comments kept on coming too, with one reading: "Molly coming bck is out of order now not even the casa girls will get a fair chance cus obv mitch and Zac gonna more be all over her and the other guys wont really act up because a familiar face is there."
Some viewers did back the decision though, predicting that Molly would bring drama - as others pointed out that past Islanders, including Kady, have returned despite already being on the show.
Molly had been devastated to leave Zachariah behind, and the pair had an emotional chat with her keen to wait for him.
She was left reeling on her return home though to see Zach had very much moved on, flirting with Whitney and sharing kisses and cuddles in bed with Kady.
Kady ended up clashing with Whitney and Zach over the possible chemistry between them, claiming she wasn’t being kept in the loop.
But now Kady can do nothing as Zach is in the villa with five new girls and former flame Molly - something she and the other girls have no idea about.
Joining Molly as a Casa bombshell are new girls Abi, Danielle, Tink, Amber and Gabby. There are also six new boys who have joined the original girls in the second villa, Casa Amor. They are Ouzy, Benjamin, Kodie, Zachary, Elom and Lochan.
Love Island airs every night at 9pm on ITV2 and ITVX.
