I am talking about the "real" version of them,in the office. Nanette was a wild girl behind that innocent look that took Daly to divinize her,and Walton was a playboy. So i think it totally happened.
shareAnd Daly probably surprised them banging in the office sometimes. Thats what made Daly losing all hopes to conquer Nanette and made him decide to create a virtual version of her.
shareWell I don't think there was a need to go to that even though we see him watching Walton flirting her. But basically after she was told how he was "starey" and weird and she was embarrassed of thinking so highly of him recall how she had a completely different cold attitude when she brought him his coffee. He noticed that and how the others already "got" to her. After this realization he knew she was going to ignore him like everybody else (much less be involved with him) and there was only one thing left to do: digitize her.
shareGood theory
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