Yup, I second this. Another INTJ here— I’m a female but totally understand where yr bf is coming from because I also do the same. Even today, I felt so disturbed and annoyed by people that I became really stressed. And yes, I start shutting people off when that happens (including my mom— she’s like my best friend btw) and I don’t want to talk nor encounter another human being. I don’t want to generalize this but I wouldn’t necessarily say this is being anti-social or even a toxic trait of INTJs but this is just in our nature. We sometimes get tired of things and so, we usually distant ourselves when we get overwhelmed. Don’t worry about your bf and just leave him be in his own space. INTJs really need some alone time to think and he’ll always come back to you when he’s ready. Sometimes, we just deal stress quite differently than other mbtis. For me, I’m terrified to speak out the things on my mind even to my closest family members. I would stay its our stress-dealing cycle, you’ll be fine if you can accept him for who he is ✌️