I think you are catastrophizing! and big time! Look what he did for you for valentine's day! He sure acts as if he really loves you. You are a very special person and I am alison doesn't hold a candle to you. I think his life with you is very very comfortable and just maybe he isn't big on intimacy. and glad that he doesn't have that pressure. He is such a kind, adorable guy and a good person. I don't think you ever fight.Maybe your illness fulfills a need for him to help. He sounds like that type of person.
love you
bobby