[*mazedsalv**]

Emma said to us "Or will they?" so hinting that the pairs may need to sacrifice themselves ot see how "loyal" they can be by freeing themselves.

My way would be to do it like Sara and Lisa's cash prize in BB9. They ahve either a "Stay" or "Abandon". They both stay loyal, "Stay" thinking they would both face eviction, they will both be rewarded by escaping, both put "abandon", they end up facing eviction both INDIVIDUALLY or one puts "stay" and another "abandon", the one that wants to "stay" with their pair will be rewarded, the other who triies to wriggle away will be put up for eviction.