Who is Nate

Charlotte:  I need you to talk to me about Nate, right now I am having trouble working out who on earth he is and what your relationship is.
Socrates: Charlotte that is shocking - I have loved Nate all my life how can you not know.
Charlotte: I have just spent six months inside Angus's head interacting with Nate I know how to be his 'little brother'  I am really struggling being Nate's lover.  All I know is he wears an eyepatch will you put some thought into it for me and tomorrow we will work out all about you and Nate so I can tell your story.
Socrates: OK Charlotte that is a deal - I look forward to it.