Hello!! beta tester here ^^ and happy new year! <3 As for your question ı will also put some warning first share about my own experiences:
Spoiler alert!
Sadly Nathaniel is way too stubborn guy for player to crack so no matter what you tell him he just keeps doing whatever he wants. I guess you can say he is only kind of person goes immune to your any kind of convincing attempts once he sets his mind into it so you gotta be careful around him ^^;;