Interesting advice. years ago, my rabbi said that when divorce is not considered an option, he advises getting needs met outside the marriage in a kosher way.
My husband once said that he is not "very emotive" and his siblings agree that he has always been this way. He can be very kind and loving if it meets his needs. I have wondered about narcissistic traits but his comment on difficulty understanding anything that he has not experienced led me to ASD.