"Embarrassed?" she volunteers, without judgment. "Ashamed that you could let yourself do something like that?" She really is just guessing, based on what she knows of him and how she might have felt if the specter of one of her exes had shown up on the barge shortly after her own arrival. And how she did feel when she was dragged to Zero to melt back into Dr. Snow. "Maybe even beating yourself up because you think that you should know better?"