I have recently realized that my knowledge of the social instinct was a little bit inaccurate, and that I am actually a sp/sx and not a so/sx. This makes me wonder if my boyfriend is a sp/so instead of the so/sp that I initially typed him as. He is an ENTJ, and a 3w4. I am an INFP, and either a 9w1 or a 6w7.
When I first met him, I thought that he was an introvert, because he was so guarded and reserved in demeanor. His fear that he is too 'boring' is an insecurity of his. He isn't "adaptable" like other 3s, and remains consistently poised, formal, and mature, with an intellectual superiority. He is a "made for the workplace" kind of guy, and his social life can struggle because he puts work ahead of everything. He tests as a 1w9 on enneagram tests, though he says he doesn't identify with 1w9 and identifies with 3w4. He is pretty tactful and could probably make a good politician, and doesn't seem to have problems or insecurities in social situations (though that is probably his 3 mask). He feels lonely when nobody else is around, though he doesn't stop working to interact with others unless it can help him advance his career in some way. He is the hardest worker I know, but he identifies with his work as a group, using "we" pronouns. He also is very team-based and considers our relationship to be like a "team". It's a common theme in our relationship..."you're on my team, your interests become mine." He also never really had romantic relationships in high school because he was working so hard.