In an explosive new interview, Millie has revealed that couple Erin Barnett and Eden Dally actually knew each other before going on the show.
Talking to Daily Mail Australia, Millie said she and other contestants had a suspicious feeling that Eden and Erin had previously met.
"I just think the whole thing seems staged on their behalf," Millie said.
"I won't forget on the first day, Erin kept repeating 'I know the last guy is for me' — when there was already four guys there."
Millie's fake bf on the show, Mark O'Dare shared similar suspicions.
"Their little private chats ... the way they take their microphones off," he said.
"The feeling is mutual around the villa with other Islanders too that they did know each other."
A spokesperson for Channel Nine has come and denied that this is the case though, telling Now To Love that "Any suspicions are misguided."