People have deeply underlying reasons for all sorts of things and dating is about as intimate and personal a choice as anyone can make. It could be as simple as not having a physical attraction with no real “logic” behind it or there could be some deeper psychological block as a result of some traumatic experience.

It’s really nobody’s business either way.

Aside from that? I just plain don’t care who other people choose to date or why, unless it’s someone I care about and at that point all I care about is whether or not it’s a healthy situation.