You're not crazy, if you found a way to deal with your problems and you are genuinely happy with your result than fuck what anyone says. Not sure about that psychopath example though because fear is not really an emotion, it more of a natural instinct that prevents us from walking in front of moving cars for talk sake. But you are right on the fact that they feel less and their emotional attachment to everything and everyone is most likely a lot lower than the one of a regular person.
I can control most of my emotions, and I am very rational person generally, just that before I didnt see the need to control them and could just suppress anything that would make me feel like shit, but its just a rolling snowball as i found out in recent months. So what happened now is that i've allowed myself to be hurt by somebody and suppressing this emotion multiplied the consequences of it by at least 10 times in very short period of time. Looking on it now it still affects me and couple events need to happen in the next couple of months before I can be at about 85-90% recovery but Id like to think im on the right path so will see what happens