Last night saw the pair both recouple with different people after being split up across two villas.
Kem partnered with new girl Chyna Ellis, who he had kissed in the second villa, while Amber decided to couple up with new guy Nathan.
In tonight's show, Amber told Montana things weren't over between her and Kem - at least as far as she's concerned.
Amber said: “Being brutally honest, I do feel like I’ve been completely mugged off. He has not even thought about the way I feel at all and he’s been quite selfish. But time is precious in here and we’ve already done the wrong thing by playing games in the past.”
Montana replied: “You’ve just got to put all your eggs in Kem’s basket, give him 100 per cent, stop messing around and just do it.”
“I’m not willing to let him go at all,” Amber continued, “I want him to be my boyfriend, I couldn’t imagine being in the villa without him and I look at him and Chyna and I think it doesn’t make sense to me.”
Later on, Gabby and Amber talked about Kem’s return to the villa with Chyna.
When asked if she felt threatened by Chyna’s entrance, Amber said: “No, not in any way, shape or form. At the end of the day, me and him have had a connection of a month, they’ve had a connection of two days.”
Meanwhile Kem was talking to Chris by the fire pit. Kem admitted he felt a bit pressured after speaking to Amber and finding out how loyal she was to him.
In the Beach Hut, he admitted: “Today has been a little bit stressful. Somehow I’ve ended up in this bit of a triangle. I’ve got Chyna on one end and I’ve got Amber on the other and my head is just absolutely frazzled.”
Love Island 2017 airs tonight at 9PM on ITV2.