At least for me, I’m aware that a guy is expected to behave in a number of ways that are deemed “masculine” and I’ve never fit into those characterizations. Only after spending some time on my own for awhile did I realize that a lot of my previous behavior was only the case because I thought it was how I should behave as someone with a dick, not how I wanted to behave. If you think about it, it’s kinda silly to categorize a human as only belonging to two different groups. Intersex people exist too!
But I’m still struggling with what other things could explain that (be it a naturally low sex drive or asexually)
Some may argue that.... Maybe it does? And maybe that's fine?
I'm kinda like you where I'm not really concerned with it though. It could be that I'm somewhere between "masculine" and "agender", but where does that intersect with the definition of "nonbinary"?