LSEs feel the same way around me. They feel like they have to think about and watch what they say. That , believe it or not, is good for extroverts. And, it's good for them to ask me to talk about what's on my mind.

With my SLI ex I could read him better than an IEE can because of Fi activating function. I felt his moods more and could deduce what was going on. Try what I do. Slow down on scanning and using your eyes and focus more on how they express subtle emotions like coy smile, mischievous grin, ah maybe a sign of stress like outer tenseness.

Umm otherwise he sounds like SLI and maybe you are just in the early stages of dualizing. You'll get used to it