In a chit chat with Marvin, Blue revealed that it is him that he truly wants.
Blue assured Marvin to stop overthinking, her intentions towards him because she wants him and not Yemi.
This conversation was warranted after Marvin expressed concern of her not giving him any cookie during their task but gave Yemi instead.
Blue told Marvin to relax as her relationship with Yemi has nothing to do with her feelings towards him even if she likes him and he’s the first guy she entangled with in the house.
She assured him that if she didn’t have interest in him (Marvin), she would have told him long ago and not lead him on.