Why Does My Fiance Seem Distant and Unloving?

I know it's probably in my head but I just feel like my fiance doesn't love me like he use too....he has started to draw which is fine...more power to him but he spends all evening doing it and doesn't spend anytime with me and he says he feels bad and that he is sorry but it doesn't feel real when he says it...and of course right now I have a cold sore so we can't kiss and I just feel so unloved. and we can't hug like we use to cause of the baby bump and he doesn't really touch me either unless he is trying to be funny and grab my boobs....all I want to do is just cry all the time!