I gotta question,

My ive bn with my fiance for a lil over 9 months. Sometimes the way he talks to me is absolutely mean. Hes not loud or even tude with it just mean. We can be playin around and ill do something stupid and we start with the huge smile on his face callin me a retardo. Or when i do something ive always done hes just never noticed. Like i wash all the dishes then rinse them instead of wash rinse wash rinse. Am i being to sensitive?