they both know they will win when they get paired for games, see how yujin was trying to tell them that when they got paired. i just know that as a leader, yujin does avoid getting paired with wonyoung in many things to stay fair. also see how yujin didn't guess right away because she was having too much fun watching wonyoung being silly.
i really live for liz reactions, shes so hilarious bruh and ofc yujin and wony would do well together but yujin and gaeul are the dangerous duo when it comes to games imo