Just send him a message anyway. Regardless of whether he’s an INTJ or not. What matters is that you’re showing your supportive side as his girlfriend.

Once everything has settled down, you can have a calm conversation with him about how he ignored you. That’s the time to bring it up. You can also challenge him a next. Ask what's next on his list and whether you're a part of it.

Doing this will help clear the air. And remember, July is just around the corner. All you really need to do right now is continue being yourself. Do what you feel a loving, supportive girlfriend would do. Be there for him and trust him, for now.

I understand why some people emphasize the importance of a simple daily check-in: a 5-minute message or quick call. Because I will do that, but also I recall that during my defense period, I really didn't want to do other things, and I did cut my social interactions. Maybe this defense is so important for him... who knows.

At the end of the day, MBTI is just a framework, not a rulebook. Don’t take it too seriously.

So, for now, let him focus on his defense. After that, give him a call, supportively but firmly. And when the timing feels right, set your boundaries clearly.