Fiance is not affectionate anymore.

I have realized my fiance stopped being affectionate for months now. He doesn't hug me or kiss me anymore. Our sex life has always been sucky but now it's worse. We have sex once or twice a month lately. He has had a shorter fuse with me. Our lives are busy right now but I always put in the effort regardless. It REALLY makes me feel unloved. I know he knows too. I asked him the other day if he still loved me. He said "Why do you ask that? Because I don't kiss you as much? I'm sorry. I do I love you." But it's still the same. We are basically roommates. With him being angry often and us not having sex often, him not kissing me or hugging me it really gets me down. I cried about it twice this week. We've been together going on 6 years. It's been this way gradually for the past 6 months. Idk what to do. What is the point of even being in an emotionless relationship? I am almost positive I can trust him. He's never been one to hide anything. I've never been suspicious of him cheating or anything. I love him dearly. I just don't think he feels the same. Or cares to show it.