LOVE Island fans were left livid tonight as Liam LAUGHED as his fling with Lillie was exposed and Millie shouted "are you f***ing joking?"
The Welshman returned to the main villa alone, but he has a LOT of explaining to do after his week away at Casa Amor.
Asked by host Laura Whitmore if she thought Liam had been faithful, nervous Millie replied: "I don't know. I can't say yes. I hope he has."
She then watched him walk in without a girl on his arm and looked VERY relieved.
But unfortunately for Millie there's heartbreak ahead as she discovers what Liam's really been up to.
He grew close to blonde bombshell Lillie this week and even a shared a bed and multiple kisses.
But something drew back to his Millie Moo - although he kept tight-lipped about what he'd been up to and instead said the time apart had made him realise his true feelings.
Unfortunately for Liam, Lillie entered and revealed all.
Millie shouted: "Are you f***ing joking? You've been kissing outside of the challenge? It's f***ing disgusting."
Defensive Liam said: "She said to give her a chance so I could compare them both. Obviously I arrived on my own for a reason."
Last night, in the first half of a dramatic recoupling, Toby walked into the villa with new girl Mary on his arm, leaving Abigail single.
Then Chloe decided to couple up with new boy Dale as Hugo returned with Amy.
Elsewhere tonight viewers were left in tears as loyal Teddy returned to Faye after Casa Amor - and was devastated to see her coupled up with Sam.
Devastated fans complained to Ofcom this week as they accused producers of "setting up" Teddy in the Casa Amor postcard.
Love-sick Teddy had been sleeping outside to dodge getting close to the bombshells.
But a picture sent to the girls back at the main villa showed him snogging someone else.
After the postcard was delivered, Faye broke down in tears over the "betrayal".
That's despite the snog being done during a game of Truth or Dare in front of the other Islanders and Teddy admitting he was "missing" Faye more than he's ever missed a girl.
Meanwhile Faye thought he'd been cracking on with the bombshells, so made a move on Sam.
Viewers were furious he's been made to look like he's been cheating on Faye - but let Liam get away with his naughty antics with Lillie.
Viewers were horrified after spotting that Liam "gave away" Millie's treasured necklace - which she brought into the villa from home.
Millie had packed her gold Sagittarius jewellery in with her partner's belongings when he was whisked away for Casa Amor.
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She admitted at the time that it was hard for her to part with it, and he was seen looking thrilled when he discovered the gesture.
However, it appears that he quickly forgot about how important it was to Millie, with Casa Amor bombshell Amy spotted wearing it wrapped around her wrist as she kissed Hugo last night.