One of the most common arguments I hear against someone - real or fictional - being a sociopath is that the person loves someone else. While I understand the presumption that a psychopath/sociopath cannot love, it simply is not true. They love, just not in the same manner or presentation as the average/neurotypical person. Theirs is a selfish, incredibly intense, love that can come and go seemingly at random…but it is love. A love that a fair number of fictional “psychos” feel, including Hannibal “The Cannibal” Lecter.
There is little argument whether Hannibal Lecter is a psychopath; he’s a serial killer who cannibalizes and sometimes serves his victims to others after all. He’s cool, calm, calculating, and enjoys playing with peoples’ brains (pun intended). That being said there’s also little doubt that he feels intensely for FBI agent Clarice Starling. In the movie, Hannibal, antagonist Mason Verger questions Hannibal’s interest in Clarice: “Does he wanna fuck her, kill her, or eat her?" His assistant/caretaker, Cordell, replies: "Probably all three, though I wouldn’t want to predict in what order.” …Cordell is probably right. More than anything Hannibal wants to possess Clarice - the exact manner of possession is something that he likely doesn't even know from one moment to the next.
At the end of The Silence of the Lambs Hannibal calls Clarice to say goodbye. He wishes her well and seems proud of her accomplishment in becoming an agent. He assures her that he will not come after her and holds himself to that promise; both of which might seem unlikely (if not impossible) for a psychopathic serial killer such as him. Yet ten years pass without him reaching out in any way, something that would be near impossible for an empathic person in love. That said when they do reconnect his feelings are the same as ever: “Does this mean you’re back on the case? If so, goody goody." In fact, he's so delighted to have her back in his life he essentially stalks her. If given the option it would appear Hannibal would much rather have her hunting him (and vice versa) than anyone else.
Hannibal comes out of hiding to be near and protect Clarice. He risks getting caught for her, he kills others because they disrespect her and put her at risk, and at the end of the Hannibal movie he sacrifices his hand for hers. For him it's as if no time at all has passed; he's just as intense in his feelings as before he left. …And at the end of the Hannibal book the sociopathic love is even more evident as he drugs and works to brainwash Clarice into becoming his sister (another love of his); something that would be considered abhorrent to do to a loved one to most, but seems perfectly reasonable/sound to Hannibal. (Dr Lecter fails, but they do appear to become lovers.)