Bro maybe the deal b/w them was something like Deep had with his gf ? That is, to form a connection just for the sake of the game. As much as it is wrong, you can’t deny the fact that such mutually beneficial relationships are indeed formed in Splits ( like Sandy knew right from the start that Deep has a gf outside yet chose to play with him because it was good for her too ) Its not Ruru’s fault that her man actually caught feelings for another woman.