This is a wonderful post. I thought I was nutts, but my STBX falls into all those categories too! Thank you so much for that validation and information.
It hit home when you said you can believe you're loved by someone that is completely unable to make an emotional connection with anyone.
As I look back, he did tell me he feels numb or angry but not happy. What I see now that I've gotten distance is a very good actor. Doing and saying all the right things, but really not able to grasp the true concept of caring and loving someone, or considering others to be human with feelings.