In maybe the *most* anticipated scene of the series so far, fans finally got to see Gaz and Lillie get together and discuss what really happened between them when they broke up. The pair had dated for nearly two years and split in November last year, amicably at first, before things clearly became strained between them.
Speaking about their split for the first time since separating, Lillie asked Gary to explain why he had ended things and acted how he did in the months that followed.
It's no secret that things turned sour between Lillie and Gaz following their romance - especially as he reunited with his on/off flame Charlotte Crosby and Lillie was accused of being "fame hungry", something she strongly denied.
Confronting Gaz, Lillie said to him during their beach date: "We had the best relationship, I will still vouch for that. There was nothing bad about our relationship. You went from that to... we broke up at an airport and we haven't spoken again since. I think it's said that if I hadn't have come out here, I don't think we would have had this conversation."
She added to the camera: "I want him to really take onboard what an idiot and nasty person he has been. I want him to feel bad for what he has done."
In his defence, Gaz admitted he "didn't have time" to think about Lillie following their split. He said: "I didn't have time to go and sit down and have a coffee and discuss it, I had to be somewhere else and it's sh*t, but that's the life I live."
Lillie then told him: "I was with Gary and all I've seen since the day we broke up is Gaz. It's not you. That's not who you are. Maybe the Gary I was with... was that real?"
Her doubts over their relationship seemed to upset Gary and he hit back: "Please don't start doubting that. Don't f**king say that, you know that's not true. You're saying the way I am with you and the way I am around my family, you think that was all a f**king act? No. That is me.
He added: "Lillie knows the real me, how I am at home and with my family and that's the hardest thing - she thinks that is slipping away. And it's not. I'm still me."
Lillie then recalled how the pair had split, pointing out that Gary had sent a tweet to address their break up on Twitter without telling her he was going to do so.
She said: "I'd have done anything for you. I shouldn't have had to justify why we broke up to the whole world. It was no-one else's business.
"You tweeted the day after we broke up without saying to me, 'Oh Lil, just so you know I think I need to write something publicly.' I hadn't even told my friends and family yet... Why would you not think I should probably tell Lillie because I'm going to tell my millions of followers?
"You tell me how you would have dealt with me doing all those things."
Lillie got an apology from Gaz over the way he handled their break up and he explained that leaving her for his career was one of the "hardest things" he has had to do.
Breaking down in tears, Gary told Lillie she had helped to make him a better person. He said: "I've changed and it's because of you, I can never ever thank you enough for that."
Seeing how upset her ex was helped Lillie to eliminate any doubts she'd had previously about Gaz and their relationship.
She said: "Seeing Gary so upset confirms to me that it was as hard and as real for him as it was for me. He was the person that I loved. Sometimes the best people in your life do hurt you"
She accepted that Gaz was "sorry" for how things ended and getting the closure that she wanted, Lillie admitted she was "ready to move on."
Ex On The Beach continues Tuesday 20 September at 10pm on MTV.
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