Cyberwoman really confuses me on the "have they or haven't they" question, because if I look at Jack, I totally see what you see. But when I look at Ianto, I sense absolutely no guilt or defensiveness on his part for loving Lisa. I mean, if Ianto had been having a sexual relationship with Jack under false pretenses before Cyberwoman, wouldn't you think there'd be some guilt on his part for deceiving/betraying Jack in that way, in addition to just hiding an "enemy" within Torchwood?