Bai Youwei had considered this as well.
In the game, it's easier to gravitate towards players you're familiar with, even when you've only met once, and when you're looking to form an alliance or a team, it's common to prioritize those players.
However, it seemed as if Fang Yu and Ya Chaohui never had the intention to ally with her from the very beginning.
In the beginning of the game, when the mobster held a leading position in the Blue Eyes' team, Fang Yu refused to interact with her in order to avoid making the mobster suspicious. This excuse was somewhat reasonable...
But what if Fang Yu was 'X'? What would he have considered then?
Bai Youwei ponders for a moment, and then asks the short-haired woman, "Who's the other one?"
The short-haired woman purses her lips and whispers, "Number 14."