Men are universally able to separate all female acquaintances into two categories: women we want to fuck, and the rest.
The more of a beta-doofus you are the more likely it is that you want to fuck everyone you know, but for any man with a shred of dignity there will typically be a line drawn between potential fucks and “the rest.”
A female not being on our literal “to do” list doesn’t mean we want them to fall off the face of the planet or die in a fire, and it certainly doesn’t mean we wouldn’t lend a hand if they were falling off a cliff- it quite literally means that we don’t want to have sex with them. And it is this distinguishing detail that opens up the rather new, from a generational standpoint, possibility of becoming just friends with a woman.
“None of these girls want to be your girlfriend…”
It’s twenty years later and I still remember the uncomfortable feeling my Dad’s blunt assessment produced.