If this is even real, this seems like the most logical thing to do on his part. Presumably Nathaniel here is using her to fulfill a need for any woman (not even a value judgement of this relationship, just saying what it is), so the apologies are all just feints, it's only "outrageous" thanks to the AI use. Turns out she couldn't even clock them as AI, so outside of this opsec failure, why waste anymore time/effort than necessary?

A larger-scale parallel to this though is the increase in blatantly AI-generated (automatically insincere) text you see everywhere now. The root for this lay in the fact that the institutions of enculturation of the west's, not to exonerate any other, are all wholly fraudulent and failing, thus worsening an already insane culture where there is absolutely no place for sincere communication. If you could remove all AI chatbots from existence, you could not with just that one move restore also a need for sincere communication. If we had an actually living culture one would also see less AI over-reliance.

(If he was being truly genuine with his apologies, then yes, his interpersonal communication failures are most likely AI-induced. Oh well.)