The other thing in the final scene is Wilf goes to the other three
"I know what I am and what you are" or words to that effect. He doesn't say "I'm a faithful" at that final crucial moment.
Its right before the vote to end the game and I suspect Hannah and Aaron spotted it too.
I was a big tell.
I think part of me feels for Wilf as he was set up to be the baddie by the format of the show, and I thought his crossing Alyssa and Amanda was ultimately reasonable in being protective as both had blown their cover by poor decisions at that point. His treatment of Kieran was different and was straight up lying to his face in a bloody obvious fashion and it was clear Kieran was aware of it, yet Wilf persisted with it. It was actually painful the running backwards and forwards out of the pool room. And then his reaction to Kierans bomb shell and his attitude at the fire pit, did make me think 'na, I don't think you should win'.
Tbh I think they should change the rules next year so that anyone who votes to end the game can only do so once. So Meryl effectively exits the game at that point, and either wins a share of the money if there's no traitor or loses it because there is. Thus it would have been just Arron and Hannah who won, because they correctly guessed and Meryl should have lost it for being wrong.
Meryl getting the money actually annoys me, because she was too brain dead to clock it at the death when even Aaron managed it.