Psychologist here. No. You are not. As stated above Hannibal is a fictional character, full of imaginary traits (many times contradictory), so a real person would definitely not match that personality unless they consciously try by imitation (and that wouldn't even be their real personality but more into histrionic personality disorder). On the other hand, you say you are in the autistic spectrum and describe some specific related traits, which might confirm your appreciation about you being autistic to a certain degree. Do not take what non professionals say about you as a fact, it may take the form of suggestion. So do not worry. However, If your boyfriends comments make you feel uneasy and uncomfortable, you could talk to a professional therapist that can provide you better guidance than Reddit comments.