Ha Ha I was going to reply but Void of Oblivion said it all for me, absolutely spot on. The thing I care most about is my cat, but if I had to move house or couldn't keep him for some reason I would have no hesitation in blowing his head off and I know from experience that I would have no remorse or guilt. As for humans I don't think I could ever care more for a human than my cat. So my answer is if you have the full suite of ASPD symptoms you would be incapable of love. I also never feel lonely so It is something I simply don't understand.