The way you describe how the "you do you feel" thing doesn't compute and how he cannot describe his emotions and he's stoic, unemotional and vulcan-like reminds me of alexithymia... I don't know if you've heard of it but it sounds like it may be relevant to his situation and wikipedia has a good article about it if you are interested. I am a lot like that too... anyways I don't know if that helps at all. Good luck