I'm glad I'm not the only one who finds Cameron's instant sexual attraction to the disabled or dying (especially cancer, yay!) somewhat creepy. And your Ianto explanation makes so much sense. Now I'm starting to think that Lisa was just the hot agent with the desk opposite his, and he always had a secret crush on her but their entire contact was a polite nod or two, then suddenly she was Cyberwomaned and it was capital-L Love!