Would i be considered a racist if?...?

My husband is black and I am white. We have been together for four years and married less than 1. We have 3 children and one on the way. I have never called him the N-word or either said *****. I do sometimes sing out "black man" like the cookey lady from the show designing women did... And I did say that he must be used to this african heat one day when it was pushing ninety and I was burning up and he was perfectly cool. I don't know why he keeps saying that I am a racist but I feel like I say as much things as he says to me, like honkey or cracker.. And I don't get offended or act stupid when he does. What am I?