I genuinely think he just doesn’t have that part of his brain. He has people that he temporarily stops fucking over and tries to charm-bomb while they’re useful to him (who he then throws under the bus again once he doesn’t need them anymore) but that seems to be about as close as he can get.

I think that’s the same reason why he’s never had a pet - if you take things like companionship and love out of the equation, a pet is just something that consumes resources without giving anything material back. I wouldn’t be surprised if he just sees them as pointless.